In this assignment, you will implement a generic map interface in tw.docx
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In this assignment, you will implement a generic map interface in two ways: as a hash table with another map implementation from the activity (attached) If you prefer, you may implement and test maps of Strings (sample code in the right column below). You should use normal Java arrays for storage, not ArrayList or other classes from the Java Collections API. Your submission should be a zip file that includes the following files: IMap.java (below, no changes needed) IMapTest.java, HashMapTest.java, and OtherMapTest.java (below, no changes needed) use the first column for Generic version, second column for String version HashMap.java (your hash table implementation) (Here is the main task) OtherMap.java (your other implementation) (Here is the main task) Sample Code for Generics Sample Code for Strings (not Generic) interface IMap { boolean del (int key); // delete key & its value T get (int key); // get value for key boolean put (int key, T val); // put key,value in map boolean hasKey(int key); // is key in map? boolean hasVal(T val); // is val in map? void clear (); // remove all keys & values String dump (); // return String with contents int size (); // return # of pairs } interface IMap { boolean del (int key); // delete key & its value String get (int key); // get value for key boolean put (int key, String val); // put key,value in map boolean hasKey(int key); // is key in map? boolean hasVal(String val); // is val in map? void clear (); // remove all keys & values String dump (); // return String with contents int size (); // return # of pairs } import static org.junit.Assert.*; import org.junit.*; public abstract class IMapTest { protected IMap map; // each subclass should initialize map and then call super.before() public void before() { assertNotNull(this.map); this.map.put(1,"one"); } @After public void after() { this.map = null; } @Test public void constructor() { assertNotNull(this.map); } @Test public void clear() { assertEquals(1, this.map.size()); this.map.clear(); assertEquals(0, this.map.size()); } @Test public void del() { assertEquals(1, this.map.size()); assertFalse ( this.map.del(0)); assertTrue ( this.map.del(1)); assertFalse ( this.map.del(1)); assertEquals(0, this.map.size()); } @Test public void get() { assertNull ( this.map.get(0)); assertEquals("one", this.map.get(1)); } @Test public void has() { assertTrue (this.map.hasKey(1)); assertTrue (this.map.hasVal("one")); assertFalse(this.map.hasKey(3)); .
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Recommended
Google collections api an introduction
The Google Collections API provides several new collection types and implementations that are part of the Guava project. Key classes include Multimap for mapping multiple values to a key, Multiset for collections that allow duplicates, BiMap for unique-valued maps, and Immutable collections that cannot be modified once created. Predicates and Functions allow filtering and transforming collection elements.
Google Guava for cleaner code
This document provides an overview of Guava, a common libraries project from Google that includes utilities for collections, caching, predicates and functions, I/O, and more. It highlights features like Optional for avoiding null checks, immutable collections, filtering collections, transforming collections, caching, and string/object utilities. The document also discusses when and where Guava can be used, such as for temporary collections, avoiding null checks, and leveraging a popular library maintained by others.
Java Generics
1. Generics in Java allow types (like lists and stacks) to operate on multiple type parameters, providing compile-time type safety without sacrificing performance.
2. Using generics avoids casting and reduces errors by catching type problems at compile time rather than runtime. It produces more readable and maintainable code.
3. The document demonstrates how to define a generic Stack class that works for any type rather than just Integers, avoiding code duplication and future bugs.
New folderjsjfArrayStack.classpackage jsjf;publicsynchronize.docx
New folder/jsjf/ArrayStack.classpackage jsjf;
publicsynchronizedclass ArrayStack implements StackADT {
privatestaticfinal int DEFAULT_CAPACITY = 100;
private int top;
private Object[] stack;
public void ArrayStack();
public void ArrayStack(int);
public void push(Object);
private void expandCapacity();
public Object pop() throws exceptions.EmptyCollectionException;
public Object peek() throws exceptions.EmptyCollectionException;
public int size();
public boolean isEmpty();
public String toString();
}
New folder/jsjf/ArrayStack.javaNew folder/jsjf/ArrayStack.javapackage jsjf;
import jsjf.exceptions.*;
import java.util.Arrays;
// -------------------------------------------------------
// Author: Yifu Wu
// Date: 03/10/16
// Source Name: ArrayStack<T>
// Due date: 03/10/16
// Description:
/**
* An array implementation of a stack in which the bottom of the
* stack is fixed at index 0.
*
* @author Java Foundations
* @version 4.0
*/
publicclassArrayStack<T>implementsStackADT<T>
{
privatefinalstaticint DEFAULT_CAPACITY =100;
privateint top;
private T[] stack;
/**
* Creates an empty stack using the default capacity.
*/
publicArrayStack()
{
this(DEFAULT_CAPACITY);
}
/**
* Creates an empty stack using the specified capacity.
* @param initialCapacity the initial size of the array
*/
publicArrayStack(int initialCapacity)
{
top =0;
stack =(T[])(newObject[initialCapacity]);
}
/**
* Adds the specified element to the top of this stack, expanding
* the capacity of the array if necessary.
* @param element generic element to be pushed onto stack
*/
publicvoid push(T element)
{
if(size()== stack.length)
expandCapacity();
stack[top]= element;
top++;
}
/**
* Creates a new array to store the contents of this stack with
* twice the capacity of the old one.
*/
privatevoid expandCapacity()
{
//stack = Arrays.copyOf(stack, stack.length * 2);
System.out.println("Expanding stack capacity\n");
T[] temp =(T[])(newObject[2*top]);
for(int i=0; i< top; i++)
temp[i]= stack[i];
stack = temp;
}
/**
* Removes the element at the top of this stack and returns a
* reference to it.
* @return element removed from top of stack
* @throws EmptyCollectionException if stack is empty
*/
public T pop()throwsEmptyCollectionException
{
if(isEmpty())
thrownewEmptyCollectionException("stack");
top--;
T result = stack[top];
stack[top]=null;
return result;
}
/**
* Returns a reference to the element at the top of this stack.
* The element is not removed from the stack.
* @return element on top of stack
* @throws EmptyCollectionException if stack is empty
*/
public T peek()throwsEmptyCollectionException
{
if(isEmpty())
thrownewEmptyCollectionException("stack");
return stack[top-1];
}
/**
* Returns the number of elements in ...
java question Fill the add statement areaProject is to wo.pdf
java question: \"Fill the add statement area\"
Project is to work with stacks.
package p2;
public class Coordinate {
public int x;
public int y;
public Coordinate( int x, int y ) {
this.x = x;
this.y = y;
}
public String toString() {
return \"(\" + this.x + \",\" + this.y + \")\";
}
@Override
public boolean equals( Object object ) {
if( object == null ) {
return false;
}
if( ! Coordinate.class.isAssignableFrom( object.getClass() )) {
return false;
}
final Coordinate other = (Coordinate) object;
return this.x == other.x && this.y == other.y;
}
}
package p2;
public class Coordinate {
public int x;
public int y;
public Coordinate( int x, int y ) {
this.x = x;
this.y = y;
}
public String toString() {
return \"(\" + this.x + \",\" + this.y + \")\";
}
@Override
public boolean equals( Object object ) {
if( object == null ) {
return false;
}
if( ! Coordinate.class.isAssignableFrom( object.getClass() )) {
return false;
}
final Coordinate other = (Coordinate) object;
return this.x == other.x && this.y == other.y;
}
}
package p2;
import java.util.Vector;
public class Maze {
private char[][] maze;
private int height;
private int width;
/**
* Create a new Maze of the specified height and width, initializing every
* location as empty, with a \' \'.
**/
public Maze( int width, int height ) {
// ADD STATEMENTS HERE
}
/**
* Mutator to allow us to set the specified Coordinate as blocked,
* marking it with a \'X\'
**/
public void setBlocked( Coordinate coord ) {
// ADD STATEMENTS HERE
}
/**
* Mutator to allow us to set the specified Coordinate as having been visited,
* marking it with a \'*\'
**/
public void setVisited( Coordinate coord ) {
// ADD STATEMENTS HERE
}
/**
* Mutator to allow us to set the specified Coordinate as part of the path solution,
* marking it with a \'.\'
**/
public void setPath( Coordinate coord ) {
// ADD STATEMENTS HERE
}
/**
* Returns the character at the locatio specified by the Coordinate
**/
public char at( Coordinate coord ) {
// ADD STATEMENTS HERE
}
/**
* Returns a Coordinate array containing all Coordinates that are clear around
* the specified coordinate.
**/
public Coordinate[] clearAround( Coordinate coord ) {
Vector vector = new Vector();
// ADD STATEMENTS HERE
// Look at each of the locations around the specified Coordinate, and add it
// to the vector if it is clear (i.e. a space)
return vector.toArray( new Coordinate[0] );
}
/**
* Returns a Coordinate that provides the entrance location in this maze.
**/
public Coordinate start() {
return new Coordinate( 0, 1 );
}
/**
* Returns a Coordinate that provides the exit location from this maze.
**/
public Coordinate end() {
// ADD STATEMENTS HERE
}
/**
* The toString() method is responsible for creating a String representation
* of the Maze. See the project specification for sample output. Note that
* the String representation adds numbers across the top and side of the Maze
* to show the Coordinates of each cell in the maze.
**/
public String toString() {
StringBuilder buffer =.
Modify HuffmanTree.java and HuffmanNode.java to allow the user to se.pdf
Modify HuffmanTree.java and HuffmanNode.java to allow the user to select the value of n 9 to
construct an n ary Huffman Tree. Once finished, verify the accuracy of your tree by running it
for the English Alphabet for n = 3, 4, 5, 6, 7, 8, 9. For each value of n, compute the average
codeword length. Write these in a table (n vs. ACW L(Cn)).
/ HuffmanTree.java
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.Scanner;
public class HuffmanTree {
public static void main(String[] args){
Scanner in = new Scanner(System.in);
System.out.print(\"Enter the file name: \");
String fileName = in.nextLine();
ArrayList nodes = new ArrayList<>();
ArrayList temp = new ArrayList<>();
try {
Scanner fin = new Scanner(new FileReader(fileName));
String symbol;
double prob;
while(fin.hasNext()){
symbol = fin.next();
prob = fin.nextDouble();
nodes.add(findInsertIndex(nodes, prob), new HuffmanNode(symbol, prob));
}
fin.close();
temp.addAll(nodes);
HuffmanNode root = createHuffmanTree(temp);
setCodeWords(root);
double avg = 0;
for (HuffmanNode node : nodes) {
System.out.println(node.getS() + \": \" + node.getC() + \": \" + node.getL());
avg += node.getL();
}
if(avg != 0)
avg /= nodes.size();
System.out.println(\"Average code length is: \" + avg);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
private static HuffmanNode createHuffmanTree(ArrayList nodes){
HuffmanNode root = null;
if(nodes.size() > 0) {
HuffmanNode node0, node1, node;
while (nodes.size() > 1) {
node0 = nodes.get(0);
node1 = nodes.get(1);
node = new HuffmanNode(null, node0.getP() + node1.getP());
node.setLeft(node0);
node.setRight(node1);
nodes.remove(0);
nodes.remove(0);
nodes.add(findInsertIndex(nodes, node.getP()), node);
}
root = nodes.get(0);
}
return root;
}
private static void setCodeWords(HuffmanNode root){
if(root != null){
setCodeWords(root, \"\");
}
}
private static void setCodeWords(HuffmanNode root, String codeWord){
if(root.getS() != null){
root.setC(codeWord);
root.setL(codeWord.length());
}
else{
setCodeWords(root.getLeft(), codeWord + \"0\");
setCodeWords(root.getRight(), codeWord + \"1\");
}
}
private static int findInsertIndex(ArrayList nodes, double prob){
for(int i = 0; i < nodes.size(); ++i){
if(prob < nodes.get(i).getP()){
return i;
}
}
return nodes.size();
}
}
// HuffmanNode.java
public class HuffmanNode {
private String S;
private double P;
private String C;
private int L;
private HuffmanNode left, right;
public HuffmanNode(String s, double p) {
S = s;
P = p;
}
public String getS() {
return S;
}
public void setS(String s) {
S = s;
}
public double getP() {
return P;
}
public void setP(double p) {
P = p;
}
public String getC() {
return C;
}
public void setC(String c) {
C = c;
}
public int getL() {
return L;
}
public void setL(int l) {
L = l;
}
public HuffmanNode getLeft() {
return left;
}
public void setLeft(HuffmanNode left) {
this.left = left;
}
public HuffmanNode getRight() {
return right;
}
public void se.
Implement the ADT stack by using an array stack to contain its entri.pdf
Implement the ADT stack by using an array stack to contain its entries. Expand the array
dynamically, as necessary. Maintain the stack’s bottom entry in stack[stack.length – 1].
Your Stack class must implement StackInterface (provided). You may use ArrayStack.java
(provided) as the starting point for your implementation.
You must implement a comprehensive set of unit tests using the main() method (and private
utility methods) in ArrayStack.java.
ArrayStack.java
public class ArrayStack implements StackInterface
{
private T[] stack; // Array of stack entries
private int topIndex; // Index of top entry
private boolean initialized = false;
private static final int DEFAULT_CAPACITY = 50;
private static final int MAX_CAPACITY = 10000;
public ArrayStack()
{
this(DEFAULT_CAPACITY);
} // end default constructor
public ArrayStack(int initialCapacity)
{
checkCapacity(initialCapacity);
// The cast is safe because the new array contains null entries
@SuppressWarnings(\"unchecked\")
T[] tempStack = (T[])new Object[initialCapacity];
stack = tempStack;
topIndex = -1;
initialized = true;
} // end constructor
// < Implementations of the stack operations go here. >
// < Implementations of the private methods go here; checkCapacity and
// checkInitialization are analogous to those in Chapter 2. >
// . . .
} // end ArrayStack
StackInterface.java
public interface StackInterface
{
/** Adds a new entry to the top of this stack.
@param newEntry An object to be added to the stack. */
public void push(T newEntry);
/** Removes and returns this stack\'s top entry.
@return The object at the top of the stack.
@throws EmptyStackException if the stack is empty before the operation. */
public T pop();
/** Retrieves this stack\'s top entry.
@return The object at the top of the stack.
@throws EmptyStackException if the stack is empty. */
public T peek();
/** Detects whether this stack is empty.
@return True if the stack is empty. */
public boolean isEmpty();
/** Removes all entries from this stack. */
public void clear();
} // end StackInterface
Solution
StackTester.java
public class StackTester
{
public static void main(String[] args)
{
ArrayStack aS = new ArrayStack();
aS.push(3);
aS.push(5);
aS.push(10);
aS.push(11);
System.out.println(\"\"+ aS.peek() + \", \" + aS.pop() + \", \" + aS.peek2());
aS.remove(1);
}
}
ArrayStack.java
import java.util.Arrays;
public class ArrayStack implements StackInterface
{
private T[] stack;
private int topIndex;
private boolean initialized = false;
private static final int DEFAULT_CAPACITY = 50;
private static final int MAX_CAPACITY = 10000;
public ArrayStack()
{
this(DEFAULT_CAPACITY);
}
public ArrayStack(int initialCapacity)
{
checkCapacity(initialCapacity);
@SuppressWarnings(\"unchecked\")
T[] tempStack = (T[])new Object[initialCapacity];
stack = tempStack;
topIndex = -1;
initialized = true;
}
public boolean isEmpty()
{
return topIndex < 0;
}
private void ensureCapacity()
{
if(topIndex == stack.length - 1)
{
int newLength = 2*stack.length;
.
Collection and framework
Collections and framework is a built in library function of JAVA which contains data structure operations.
Recommended
Google collections api an introduction
The Google Collections API provides several new collection types and implementations that are part of the Guava project. Key classes include Multimap for mapping multiple values to a key, Multiset for collections that allow duplicates, BiMap for unique-valued maps, and Immutable collections that cannot be modified once created. Predicates and Functions allow filtering and transforming collection elements.
Google Guava for cleaner code
This document provides an overview of Guava, a common libraries project from Google that includes utilities for collections, caching, predicates and functions, I/O, and more. It highlights features like Optional for avoiding null checks, immutable collections, filtering collections, transforming collections, caching, and string/object utilities. The document also discusses when and where Guava can be used, such as for temporary collections, avoiding null checks, and leveraging a popular library maintained by others.
Java Generics
1. Generics in Java allow types (like lists and stacks) to operate on multiple type parameters, providing compile-time type safety without sacrificing performance.
2. Using generics avoids casting and reduces errors by catching type problems at compile time rather than runtime. It produces more readable and maintainable code.
3. The document demonstrates how to define a generic Stack class that works for any type rather than just Integers, avoiding code duplication and future bugs.
New folderjsjfArrayStack.classpackage jsjf;publicsynchronize.docx
New folder/jsjf/ArrayStack.classpackage jsjf;
publicsynchronizedclass ArrayStack implements StackADT {
privatestaticfinal int DEFAULT_CAPACITY = 100;
private int top;
private Object[] stack;
public void ArrayStack();
public void ArrayStack(int);
public void push(Object);
private void expandCapacity();
public Object pop() throws exceptions.EmptyCollectionException;
public Object peek() throws exceptions.EmptyCollectionException;
public int size();
public boolean isEmpty();
public String toString();
}
New folder/jsjf/ArrayStack.javaNew folder/jsjf/ArrayStack.javapackage jsjf;
import jsjf.exceptions.*;
import java.util.Arrays;
// -------------------------------------------------------
// Author: Yifu Wu
// Date: 03/10/16
// Source Name: ArrayStack<T>
// Due date: 03/10/16
// Description:
/**
* An array implementation of a stack in which the bottom of the
* stack is fixed at index 0.
*
* @author Java Foundations
* @version 4.0
*/
publicclassArrayStack<T>implementsStackADT<T>
{
privatefinalstaticint DEFAULT_CAPACITY =100;
privateint top;
private T[] stack;
/**
* Creates an empty stack using the default capacity.
*/
publicArrayStack()
{
this(DEFAULT_CAPACITY);
}
/**
* Creates an empty stack using the specified capacity.
* @param initialCapacity the initial size of the array
*/
publicArrayStack(int initialCapacity)
{
top =0;
stack =(T[])(newObject[initialCapacity]);
}
/**
* Adds the specified element to the top of this stack, expanding
* the capacity of the array if necessary.
* @param element generic element to be pushed onto stack
*/
publicvoid push(T element)
{
if(size()== stack.length)
expandCapacity();
stack[top]= element;
top++;
}
/**
* Creates a new array to store the contents of this stack with
* twice the capacity of the old one.
*/
privatevoid expandCapacity()
{
//stack = Arrays.copyOf(stack, stack.length * 2);
System.out.println("Expanding stack capacity\n");
T[] temp =(T[])(newObject[2*top]);
for(int i=0; i< top; i++)
temp[i]= stack[i];
stack = temp;
}
/**
* Removes the element at the top of this stack and returns a
* reference to it.
* @return element removed from top of stack
* @throws EmptyCollectionException if stack is empty
*/
public T pop()throwsEmptyCollectionException
{
if(isEmpty())
thrownewEmptyCollectionException("stack");
top--;
T result = stack[top];
stack[top]=null;
return result;
}
/**
* Returns a reference to the element at the top of this stack.
* The element is not removed from the stack.
* @return element on top of stack
* @throws EmptyCollectionException if stack is empty
*/
public T peek()throwsEmptyCollectionException
{
if(isEmpty())
thrownewEmptyCollectionException("stack");
return stack[top-1];
}
/**
* Returns the number of elements in ...
java question Fill the add statement areaProject is to wo.pdf
java question: \"Fill the add statement area\"
Project is to work with stacks.
package p2;
public class Coordinate {
public int x;
public int y;
public Coordinate( int x, int y ) {
this.x = x;
this.y = y;
}
public String toString() {
return \"(\" + this.x + \",\" + this.y + \")\";
}
@Override
public boolean equals( Object object ) {
if( object == null ) {
return false;
}
if( ! Coordinate.class.isAssignableFrom( object.getClass() )) {
return false;
}
final Coordinate other = (Coordinate) object;
return this.x == other.x && this.y == other.y;
}
}
package p2;
public class Coordinate {
public int x;
public int y;
public Coordinate( int x, int y ) {
this.x = x;
this.y = y;
}
public String toString() {
return \"(\" + this.x + \",\" + this.y + \")\";
}
@Override
public boolean equals( Object object ) {
if( object == null ) {
return false;
}
if( ! Coordinate.class.isAssignableFrom( object.getClass() )) {
return false;
}
final Coordinate other = (Coordinate) object;
return this.x == other.x && this.y == other.y;
}
}
package p2;
import java.util.Vector;
public class Maze {
private char[][] maze;
private int height;
private int width;
/**
* Create a new Maze of the specified height and width, initializing every
* location as empty, with a \' \'.
**/
public Maze( int width, int height ) {
// ADD STATEMENTS HERE
}
/**
* Mutator to allow us to set the specified Coordinate as blocked,
* marking it with a \'X\'
**/
public void setBlocked( Coordinate coord ) {
// ADD STATEMENTS HERE
}
/**
* Mutator to allow us to set the specified Coordinate as having been visited,
* marking it with a \'*\'
**/
public void setVisited( Coordinate coord ) {
// ADD STATEMENTS HERE
}
/**
* Mutator to allow us to set the specified Coordinate as part of the path solution,
* marking it with a \'.\'
**/
public void setPath( Coordinate coord ) {
// ADD STATEMENTS HERE
}
/**
* Returns the character at the locatio specified by the Coordinate
**/
public char at( Coordinate coord ) {
// ADD STATEMENTS HERE
}
/**
* Returns a Coordinate array containing all Coordinates that are clear around
* the specified coordinate.
**/
public Coordinate[] clearAround( Coordinate coord ) {
Vector vector = new Vector();
// ADD STATEMENTS HERE
// Look at each of the locations around the specified Coordinate, and add it
// to the vector if it is clear (i.e. a space)
return vector.toArray( new Coordinate[0] );
}
/**
* Returns a Coordinate that provides the entrance location in this maze.
**/
public Coordinate start() {
return new Coordinate( 0, 1 );
}
/**
* Returns a Coordinate that provides the exit location from this maze.
**/
public Coordinate end() {
// ADD STATEMENTS HERE
}
/**
* The toString() method is responsible for creating a String representation
* of the Maze. See the project specification for sample output. Note that
* the String representation adds numbers across the top and side of the Maze
* to show the Coordinates of each cell in the maze.
**/
public String toString() {
StringBuilder buffer =.
Modify HuffmanTree.java and HuffmanNode.java to allow the user to se.pdf
Modify HuffmanTree.java and HuffmanNode.java to allow the user to select the value of n 9 to
construct an n ary Huffman Tree. Once finished, verify the accuracy of your tree by running it
for the English Alphabet for n = 3, 4, 5, 6, 7, 8, 9. For each value of n, compute the average
codeword length. Write these in a table (n vs. ACW L(Cn)).
/ HuffmanTree.java
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.Scanner;
public class HuffmanTree {
public static void main(String[] args){
Scanner in = new Scanner(System.in);
System.out.print(\"Enter the file name: \");
String fileName = in.nextLine();
ArrayList nodes = new ArrayList<>();
ArrayList temp = new ArrayList<>();
try {
Scanner fin = new Scanner(new FileReader(fileName));
String symbol;
double prob;
while(fin.hasNext()){
symbol = fin.next();
prob = fin.nextDouble();
nodes.add(findInsertIndex(nodes, prob), new HuffmanNode(symbol, prob));
}
fin.close();
temp.addAll(nodes);
HuffmanNode root = createHuffmanTree(temp);
setCodeWords(root);
double avg = 0;
for (HuffmanNode node : nodes) {
System.out.println(node.getS() + \": \" + node.getC() + \": \" + node.getL());
avg += node.getL();
}
if(avg != 0)
avg /= nodes.size();
System.out.println(\"Average code length is: \" + avg);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
private static HuffmanNode createHuffmanTree(ArrayList nodes){
HuffmanNode root = null;
if(nodes.size() > 0) {
HuffmanNode node0, node1, node;
while (nodes.size() > 1) {
node0 = nodes.get(0);
node1 = nodes.get(1);
node = new HuffmanNode(null, node0.getP() + node1.getP());
node.setLeft(node0);
node.setRight(node1);
nodes.remove(0);
nodes.remove(0);
nodes.add(findInsertIndex(nodes, node.getP()), node);
}
root = nodes.get(0);
}
return root;
}
private static void setCodeWords(HuffmanNode root){
if(root != null){
setCodeWords(root, \"\");
}
}
private static void setCodeWords(HuffmanNode root, String codeWord){
if(root.getS() != null){
root.setC(codeWord);
root.setL(codeWord.length());
}
else{
setCodeWords(root.getLeft(), codeWord + \"0\");
setCodeWords(root.getRight(), codeWord + \"1\");
}
}
private static int findInsertIndex(ArrayList nodes, double prob){
for(int i = 0; i < nodes.size(); ++i){
if(prob < nodes.get(i).getP()){
return i;
}
}
return nodes.size();
}
}
// HuffmanNode.java
public class HuffmanNode {
private String S;
private double P;
private String C;
private int L;
private HuffmanNode left, right;
public HuffmanNode(String s, double p) {
S = s;
P = p;
}
public String getS() {
return S;
}
public void setS(String s) {
S = s;
}
public double getP() {
return P;
}
public void setP(double p) {
P = p;
}
public String getC() {
return C;
}
public void setC(String c) {
C = c;
}
public int getL() {
return L;
}
public void setL(int l) {
L = l;
}
public HuffmanNode getLeft() {
return left;
}
public void setLeft(HuffmanNode left) {
this.left = left;
}
public HuffmanNode getRight() {
return right;
}
public void se.
Implement the ADT stack by using an array stack to contain its entri.pdf
Implement the ADT stack by using an array stack to contain its entries. Expand the array
dynamically, as necessary. Maintain the stack’s bottom entry in stack[stack.length – 1].
Your Stack class must implement StackInterface (provided). You may use ArrayStack.java
(provided) as the starting point for your implementation.
You must implement a comprehensive set of unit tests using the main() method (and private
utility methods) in ArrayStack.java.
ArrayStack.java
public class ArrayStack implements StackInterface
{
private T[] stack; // Array of stack entries
private int topIndex; // Index of top entry
private boolean initialized = false;
private static final int DEFAULT_CAPACITY = 50;
private static final int MAX_CAPACITY = 10000;
public ArrayStack()
{
this(DEFAULT_CAPACITY);
} // end default constructor
public ArrayStack(int initialCapacity)
{
checkCapacity(initialCapacity);
// The cast is safe because the new array contains null entries
@SuppressWarnings(\"unchecked\")
T[] tempStack = (T[])new Object[initialCapacity];
stack = tempStack;
topIndex = -1;
initialized = true;
} // end constructor
// < Implementations of the stack operations go here. >
// < Implementations of the private methods go here; checkCapacity and
// checkInitialization are analogous to those in Chapter 2. >
// . . .
} // end ArrayStack
StackInterface.java
public interface StackInterface
{
/** Adds a new entry to the top of this stack.
@param newEntry An object to be added to the stack. */
public void push(T newEntry);
/** Removes and returns this stack\'s top entry.
@return The object at the top of the stack.
@throws EmptyStackException if the stack is empty before the operation. */
public T pop();
/** Retrieves this stack\'s top entry.
@return The object at the top of the stack.
@throws EmptyStackException if the stack is empty. */
public T peek();
/** Detects whether this stack is empty.
@return True if the stack is empty. */
public boolean isEmpty();
/** Removes all entries from this stack. */
public void clear();
} // end StackInterface
Solution
StackTester.java
public class StackTester
{
public static void main(String[] args)
{
ArrayStack aS = new ArrayStack();
aS.push(3);
aS.push(5);
aS.push(10);
aS.push(11);
System.out.println(\"\"+ aS.peek() + \", \" + aS.pop() + \", \" + aS.peek2());
aS.remove(1);
}
}
ArrayStack.java
import java.util.Arrays;
public class ArrayStack implements StackInterface
{
private T[] stack;
private int topIndex;
private boolean initialized = false;
private static final int DEFAULT_CAPACITY = 50;
private static final int MAX_CAPACITY = 10000;
public ArrayStack()
{
this(DEFAULT_CAPACITY);
}
public ArrayStack(int initialCapacity)
{
checkCapacity(initialCapacity);
@SuppressWarnings(\"unchecked\")
T[] tempStack = (T[])new Object[initialCapacity];
stack = tempStack;
topIndex = -1;
initialized = true;
}
public boolean isEmpty()
{
return topIndex < 0;
}
private void ensureCapacity()
{
if(topIndex == stack.length - 1)
{
int newLength = 2*stack.length;
.
Collection and framework
Collections and framework is a built in library function of JAVA which contains data structure operations.
java write a program to evaluate the postfix expressionthe program.pdf
java write a program to evaluate the postfix expression
the program should ask users for input and show the postfix epression and then the result.
and to have a try and catch exception since we have an empty stack
Solution
Postfix.java
import java.util.Scanner;
public class Postfix
{
/**
* Reads and evaluates multiple postfix expressions.
*/
public static void main (String[] args)
{
String expression, again;
int result;
try
{
Scanner in = new Scanner(System.in);
do
{
PostfixEvaluator evaluator = new PostfixEvaluator();
System.out.println (\"Enter a valid postfix expression: \");
expression = in.nextLine();
result = evaluator.evaluate (expression);
System.out.println();
System.out.println (\"That expression equals \" + result);
System.out.print (\"Evaluate another expression [Y/N]? \");
again = in.nextLine();
System.out.println();
}
while (again.equalsIgnoreCase(\"y\"));
}
catch (Exception IOException)
{
System.out.println(\"Input exception reported\");
}
}
}
PostfixEvaluator.java
//import datastructures.ArrayStack;
import java.util.StringTokenizer;
public class PostfixEvaluator
{
/** constant for addition symbol */
private final char ADD = \'+\';
/** constant for subtraction symbol */
private final char SUBTRACT = \'-\';
/** constant for multiplication symbol */
private final char MULTIPLY = \'*\';
/** constant for division symbol */
private final char DIVIDE = \'/\';
/** the stack */
private ArrayStack stack;
/**
* Sets up this evaluator by creating a new stack.
*/
public PostfixEvaluator()
{
stack = new ArrayStack();
}
/**
* Evaluates the specified postfix expression. If an operand is
* encountered, it is pushed onto the stack. If an operator is
* encountered, two operands are popped, the operation is
* evaluated, and the result is pushed onto the stack.
* //param expr String representation of a postfix expression
* //return int value of the given expression
*/
public int evaluate (String expr)
{
int op1, op2, result = 0;
String token;
StringTokenizer tokenizer = new StringTokenizer (expr);
while (tokenizer.hasMoreTokens())
{
token = tokenizer.nextToken();
if (isOperator(token))
{
op2 = (stack.pop()).intValue();
op1 = (stack.pop()).intValue();
result = evalSingleOp (token.charAt(0), op1, op2);
stack.push (new Integer(result));
}
else
stack.push (new Integer(Integer.parseInt(token)));
}
return result;
}
/**
* Determines if the specified token is an operator.
* //param token String representing a single token
* //return boolean true if token is operator
*/
private boolean isOperator (String token)
{
return ( token.equals(\"+\") || token.equals(\"-\") ||
token.equals(\"*\") || token.equals(\"/\") );
}
/**
* Performs integer evaluation on a single expression consisting of
* the specified operator and operands.
* //param operation operation to be performed
* //param op1 the first operand
* //param op2 the second operand
* //return int value of the expression
*/
private int evalSingleOp (char operation, int op1, int op2)
{
int result = 0;
switch .
Please review my code (java)Someone helped me with it but i cannot.pdf
Please make it to clear 12-95. The basketball passed through the hoop even though it barely
cleared the hands of the player B who attempted to block it. Neglecting the size of the ball,
determine the magnitude vn of its initial velocity and the height h of the ball when it passes over
player B 10 ft 5 ft Prob. 12-95
Solution
Consider the motion along horizontal direction
Vox = initial velocity in horizontal direction = Va Cos30
X = horizontal distance = 25 + 3 = 28 ft
t = time taken
t = X / Vox = 28/(Va Cos30) eq-1
consider the motion in vertical direction
Y = vertical displacement = 10 - 7 = 3 ft
a = acceleration = - 32.2
Voy = initial velocity = Va Sin30
t = time taken
using the equation
Y = Voy t + (0.5) a t2
3 = (Va Sin30) (28/(Va Cos30)) + (0.5) (- 32.2) (28/(Va Cos30))2
Va = 35.8 m/s
t\' = time taken to reach B = 25 / (Va Cos30) = 25 / (35.8 Cos30) = 0.81 sec
h = 7 + Voy t\' + (0.5) a t\'2
h = 7 + (35.8 Sin30) (0.81) + (0.5) (- 32.2) (0.81)2
h = 10.94 ft.
Creat Shape classes from scratch DETAILS You will create 3 shape cla.pdf
Creat Shape classes from scratch DETAILS You will create 3 shape classes (Circle, Rectangle,
Triangle) that all inherit from a single abstract class called AbstractShape which implements
Shape (also created by you). You are also responsible for creating the driver class
\"Assignment7.java\" (program that tests your classes and described on page 3) which does the
following reads input data from a file instantiates various objects of the three shapes based on the
input data stores each in a LinkedList outputs this list to an output file sorts a \"copy\" of this
LinkedList of objects outputs the sorted version of the list to the output file outputs the original
list to the output file This driver program also needs to \"ignore errors in the input file that breach
the specified input format as described in the Assianment7,java details (see page 3 1. Shape.java
This is an interface that has 2 abstract methods, and passes the responsibility of implementing the
compareTo method to the class that implements Shape (you may note, nomally Comparable is
\"implemented\" by a class. However, an interface cannot implement because interfaces can only
contain abstract methods. That said, an interface can only extend other interfaces and the
responsibility of actually \"implementing\" the abstract method(s) of the super class interface is
passed on to the sub-classes) public interface Shape extends Comparable public double
calculateAreal) Il This abstract method is implemented at the concrete level public Shape
copyShape); Il also implemented at the concrete level 2. AbstractShape.java public abstract class
AbstractShape implements Shape This class should contain an instance field to store the name of
each obiect. The constructor which sets this field should receive the name and a number to be
concatenated to the name and then stored in the name field Recall, when the super class has a
parameterized constructor, the sub-classes will need to call it AND the sub- classes will need to
also provide a constructor without parameters This abstract class will implement the compareTo
method passed on from the Shape interface and will pass on the responsibility of implementing
calculateArea to the extending sub-classes (compare To will use the calculateArea method when
comparing 2 Shape objects). Along with compare To, one more concrete method should be
included. The following will be used by the sub-classes\' toString method: public String
getName) II Simply returns the name field data
Solution
in7.txt
4.4
2.5 3
8.1 3.0 5.0
2.5 3 4
2.5
tuesday
-7
1.0
3 three
3 -9
3 5
1.0
Assignment7.java
import java.io.*;
import java.util.*;
public class Assignment7 {
/**
* This is the test driver class that will include main.
* This program MUST read a file named in7.txt and
* generate an output file named out7.txt. The in7.txt
* file must be created by you based on formatting
* described shortly.
*
* @param theArgs
*/
public static void main(String[] theArgs) {
List myList = new Arra.
Laporan ai modul 2-if b 2014-14102055-deprilana ego prakasa
This document discusses an implementation of depth-first search (DFS) and breadth-first search (BFS) algorithms on a graph data structure. It includes Java code for Vertex, Graph, and Main classes that define a graph, add vertices and edges, and perform DFS and BFS searches. The Main class includes examples of constructing graphs and calling the search methods. Questions are provided at the end for testing DFS and BFS on additional graph examples.
Complete the implementation of the Weighted Graph that we began in t.pdf
Complete the implementation of the Weighted Graph that we began in this chapter by provide
bodies for the methods isEmpty, isFull, hasVertex, clearMarks, markVertex, isMarked, and
getUnmarked in the WeightedGraph.java file. Test the completed implementation using the
UseGraph class. When implementing hasVertex, dont forget to use the equals mehtod to
compare vertices. Java Code.
// Incomplete version
//----------------------------------------------------------------------------
// WeightedGraph.java by Dale/Joyce/Weems Chapter 9
//
// Implements a directed graph with weighted edges.
// Vertices are objects of class T and can be marked as having been visited.
// Edge weights are integers.
// Equivalence of vertices is determined by the vertices\' equals method.
//
// General precondition: Except for the addVertex and hasVertex methods,
// any vertex passed as an argument to a method is in this graph.
//----------------------------------------------------------------------------
package ch09.graphs;
import ch05.queues.*;
public class WeightedGraph implements WeightedGraphInterface
{
public static final int NULL_EDGE = 0;
private static final int DEFCAP = 50; // default capacity
private int numVertices;
private int maxVertices;
private T[] vertices;
private int[][] edges;
private boolean[] marks; // marks[i] is mark for vertices[i]
public WeightedGraph()
// Instantiates a graph with capacity DEFCAP vertices.
{
numVertices = 0;
maxVertices = DEFCAP;
vertices = (T[]) new Object[DEFCAP];
marks = new boolean[DEFCAP];
edges = new int[DEFCAP][DEFCAP];
}
public WeightedGraph(int maxV)
// Instantiates a graph with capacity maxV.
{
numVertices = 0;
maxVertices = maxV;
vertices = (T[]) new Object[maxV];
marks = new boolean[maxV];
edges = new int[maxV][maxV];
}
public boolean isEmpty()
// Returns true if this graph is empty; otherwise, returns false.
{
}
public boolean isFull()
// Returns true if this graph is full; otherwise, returns false.
{
}
public void addVertex(T vertex)
// Preconditions: This graph is not full.
// Vertex is not already in this graph.
// Vertex is not null.
//
// Adds vertex to this graph.
{
vertices[numVertices] = vertex;
for (int index = 0; index < numVertices; index++)
{
edges[numVertices][index] = NULL_EDGE;
edges[index][numVertices] = NULL_EDGE;
}
numVertices++;
}
public boolean hasVertex(T vertex)
// Returns true if this graph contains vertex; otherwise, returns false.
{
}
private int indexIs(T vertex)
// Returns the index of vertex in vertices.
{
int index = 0;
while (!vertex.equals(vertices[index]))
index++;
return index;
}
public void addEdge(T fromVertex, T toVertex, int weight)
// Adds an edge with the specified weight from fromVertex to toVertex.
{
int row;
int column;
row = indexIs(fromVertex);
column = indexIs(toVertex);
edges[row][column] = weight;
}
public int weightIs(T fromVertex, T toVertex)
// If edge from fromVertex to toVertex exists, returns the weight of edge;
// otherwise, returns a special “null-edge” value..
Write a program that converts an infix expression into an equivalent.pdf
Write a program that converts an infix expression into an equivalent postfix expression. The
rules to convert an infix expression into an equivalent postfix expression are as follows (C++):
Initialize pfx to an empty expression and also initialize the stack.
Get the next symbol, sym, from infx.
If sym is an operand, append sym to pfx.
If sym is (, push sym into the stack.
If sym is ), pop and append all of the symbols from the stack until the most recent left
parentheses. Pop and discard the left parentheses.
If sym is an operator:
Pop and append all of the operators from the stack to pfx that are above the most recent left
parentheses and have precedence greater than or equal to sym.
Push sym onto the stack.
After processing infx, some operators might be left in the stack. Pop and append to pfx
everything from the stack.
In this program, you will consider the following (binary) arithmetic operators: +, -, *, and /.
You may assume that the expressions you will process are error free. Design a class that stores
the infix and postfix strings. The class must include the following operations:
getInfix: Stores the infix expression.
showInfix: Outputs the infix expression.
showPostfix: Outputs the postfix expression.
convertToPostfix: Converts the infix expression into a postfix expression. The resulting postfix
expression is stored in pfx.
precedence: Determines the precedence between two operators. If the first operator is of higher
or equal precedence than the second operator, it returns the value true; otherwise, it returns the
value false.
A + B - C;
(A + B ) * C;
(A + B) * (C - D);
A + ((B + C) * (E - F) - G) / (H - I);
A + B * (C + D ) - E / F * G + H;
Infix Expression: A+B-C;
Postfix Expression: AB+C-
Infix Expression: (A+B)*C;
Postfix Expression: AB+C*
Infix Expression: (A+B)*(C-D);
Postfix Expression: AB+CD-*
Infix Expression: A+((B+C)*(E-F)-G)/(H-I);
Postfix Expression: ABC+EF-*G-HI-/+
Infix Expression: A+B*(C+D)-E/F*G+H;
Postfix Expression: ABCD+*+EF/G*-H+
Turn in:
A UML diagram for your class.
The header file for your class.
The implementation file for your class.
The source code for your test program. (C++)
(Below already done code.)
//Header file: myStack.h
#ifndef H_StackType
#define H_StackType
#include
#include
#include \"stackADT.h\"
using namespace std;
template
class stackType: public stackADT
{
public:
const stackType& operator=(const stackType&);
//Overload the assignment operator.
void initializeStack();
//Function to initialize the stack to an empty state.
//Postcondition: stackTop = 0
bool isEmptyStack() const;
//Function to determine whether the stack is empty.
//Postcondition: Returns true if the stack is empty,
// otherwise returns false.
bool isFullStack() const;
//Function to determine whether the stack is full.
//Postcondition: Returns true if the stack is full,
// otherwise returns false.
void push(const Type& newItem);
//Function to add newItem to the stack.
//Precondition: The stack exists and is not full.
//Postc.
ScalaFlavor4J
ScalaFlavor4J provides you Scala flavored useful API in Java.
https://github.com/m3dev/scalaflavor4j
Java Question help needed In the program Fill the Add statements.pdf
Item 8 Singly ionized (one electron removed) atoms are accelerated and then passed through a
velocity selector consisting of perpendicular electric and magnetic fields. The electric field is 158
V/m and the magnetic field is 3.13 Times 10^2 T. The ions next enter a uniform magnetic field
of magnitude 1.73 Times 10^-2 T that is oriented perpendicular to their velocity. How fast are
the ions moving when they emerge from the velocity selector? If the radius of the path of the
ions in the second magnetic field is 17.4 cm, what is their mass?
Solution
A)
In Velocity selector Electric field & Magnetic field forces on ions are equal & opposite ,this is
because it allows ions with a particular velocity only passes undeflected.
so we can say,
Bqv = Eq
B:magnetic field density
E:Electric field
v:velocity at which the ions remains undeflected.
v=E/B
v = 158V/m / 3.13*10-2 T
=> v = 4.78*103 m/s
B)
as it enteres next in uniform magnetic field of value B=1.73*10-2 T
Work done in uniform magnetic field is zero.It only changes the direction.So B provides
centripetal force for the ions while changing direction in circular path of radius r=17.4cm.
Bqv = mv²/r
m = Bqr / v = (1.73*10-2T)(1.6*10-19C)(0.174m) / (4.78*103m/s)
=>m = 1*10-25 kg.
Write a program that reads a graph from a file and determines whether.docx
The document describes a program that reads a graph from a file, determines if the graph is connected, and performs depth-first search (DFS) on the graph. It prompts the user for a file, reads the graph data, creates an unweighted graph, prints the edges, and uses DFS to check if the number of visited vertices matches the total. If so, the graph is connected.
1 Part I written exercises.1. Using the Red-Black Tre.docx
1
Part I: written exercises.
1. Using the Red-Black Tree applet, you input the following numbers into the Red-Black tree, keep all red-black rules ( see the red-black rule on the bottom of the exercise ) either using color changes or rotation. The result graph should be height balance and red-black correct.
You need to follow the rules, randomly color change and rotation will result in zero credit even the result could be red-black correct.
Attach your results of screen shots for every question.
a. Insert 50, 70, 20, 90
b. Insert 50, 70, 20, 90, 99
c. Insert 50, 70, 20, 90, 80
d. Insert 50, 70, 20, 80, 60, 90, 75, 95
e. Insert 50, 70, 20, 90, 60, 55, 65, 68
Red-Black Rules
When inserting (or deleting) a new node, certain rules, which we call the red-black rules, must be followed. If they’re followed, the tree will be balanced. Let’s lookbriefly at these rules:
1. Every node is either red or black.
2. The root is always black.
3. If a node is red, its children must be black (although the converse isn’t necessarily true).
4. Every path from the root to a leaf, or to a null child, must contain the same
number of black nodes.
2. Given input {4371, 1323, 6173, 4199, 4344, 9679, 1989} and a hash function h(x) = x %10 (table size is 10), showing the resulting
a. Separate chaining hash table
b. Open addressing hash table using linear probing.
c. Open addressing hash table using quadratic probing.
d. Open addressing hash table with second hash function h2(x) = 7- (x %7)
3. Draw the figures to show steps how to convert the binary tree to a heap using the Heapify algorithm.
(
4
5
2
6
7
3
1
)
4. Using the diagrams (see the attached example of heap sort) to trace the action of heapsort on the list of 1, 7, 2, 6, 3, 5, 4, give every state of your tree such as finishing a heapify or removing the root.
Part II: programming exercise
Implement the PriorityQ class in the priorityQ.java program (Listing 4.6) using
a heap instead of an array. You should be able to use the Heap class in the
heap.java program (Listing 12.1) without modification. Make it a descending
queue (largest item is removed).
Listing 4.6
The priorityQ.java Program
// priorityQ.java
// demonstrates priority queue
// to run this program: C>java PriorityQApp
////////////////////////////////////////////////////////////////
class PriorityQ
{
// array in sorted order, from max at 0 to min at size-1
private int maxSize;
private long[] queArray;
private int nItems;
//-------------------------------------------------------------
public PriorityQ(int s) // constructor
{
maxSize = s;
queArray = new long[maxSize];
nItems = 0;
}
//-------------------------------------------------------------
public void insert(long item) // insert item
{
int j;
if(nItems==0) // if no items,
queArray[nItems++] = item; // insert at 0
else // if items,
{
for(j=nItems-1; j>=0; j--) // start at end,
{
if( item > queArray[j] ) // if new item larger,
queArray[j+1] = queArray[ ...
Using NetBeansImplement a queue named QueueLL using a Linked List .pdf
Using NetBeans
Implement a queue named QueueLL using a Linked List (same as we did for the stack). This
implementation must be used in all the following problems.
Implement a queue QueueST using a stack (use StackLL).
Test your implementations in the main with examples.
Solution
Answer:-
import java.util.*;
/* Class Node */
class Node
{
protected int data;
protected Node link;
/* Constructor */
public Node()
{
link = null;
data = 0;
}
/* Constructor */
public Node(int d,Node n)
{
data = d;
link = n;
}
/* Function to set link to next Node */
public void setLink(Node n)
{
link = n;
}
/* Function to set data to current Node */
public void setData(int d)
{
data = d;
}
/* Function to get link to next node */
public Node getLink()
{
return link;
}
/* Function to get data from current Node */
public int getData()
{
return data;
}
}
/* Class linkedQueue */
class linkedQueue
{
protected Node front, rear;
public int size;
/* Constructor */
public linkedQueue()
{
front = null;
rear = null;
size = 0;
}
/* Function to check if queue is empty */
public boolean isEmpty()
{
return front == null;
}
/* Function to get the size of the queue */
public int getSize()
{
return size;
}
/* Function to insert an element to the queue */
public void insert(int data)
{
Node nptr = new Node(data, null);
if (rear == null)
{
front = nptr;
rear = nptr;
}
else
{
rear.setLink(nptr);
rear = rear.getLink();
}
size++ ;
}
/* Function to remove front element from the queue */
public int remove()
{
if (isEmpty() )
throw new NoSuchElementException(\"Underflow Exception\");
Node ptr = front;
front = ptr.getLink();
if (front == null)
rear = null;
size-- ;
return ptr.getData();
}
/* Function to check the front element of the queue */
public int peek()
{
if (isEmpty() )
throw new NoSuchElementException(\"Underflow Exception\");
return front.getData();
}
/* Function to display the status of the queue */
public void display()
{
System.out.print(\"\ Queue = \");
if (size == 0)
{
System.out.print(\"Empty\ \");
return ;
}
Node ptr = front;
while (ptr != rear.getLink() )
{
System.out.print(ptr.getData()+\" \");
ptr = ptr.getLink();
}
System.out.println();
}
}
/* Class LinkedQueueImplement */
public class LinkedQueueImplement
{
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
/* Creating object of class linkedQueue */
linkedQueue lq = new linkedQueue();
/* Perform Queue Operations */
System.out.println(\"Linked Queue Test\ \");
char ch;
do
{
System.out.println(\"\ Queue Operations\");
System.out.println(\"1. insert\");
System.out.println(\"2. remove\");
System.out.println(\"3. peek\");
System.out.println(\"4. check empty\");
System.out.println(\"5. size\");
int choice = scan.nextInt();
switch (choice)
{
case 1 :
System.out.println(\"Enter integer element to insert\");
lq.insert( scan.nextInt() );
break;
case 2 :
try
{
System.out.println(\"Removed Element = \"+ lq.remove());
}
catch (Exception e)
{
System.out.println(\"Error : \" + e.getMessage());
}
break;
case 3 .
Internal workshop es6_2015
This document provides an overview of ES6 (ECMAScript 2015) features including: let, const and var; template strings; arrow functions; destructuring; default parameters; rest and spread syntax; iterators; classes; modules; maps, sets, weakmaps and weaksets; promises; and more. It explains each feature and provides code examples to demonstrate usage and differences from ES5. Browser compatibility notes are also included to advise on safe usage of new features across environments.
Java 5 Features
The document summarizes several Java 5 features including generics, enhanced for loops, autoboxing/unboxing, typesafe enums, varargs, static imports, and annotations. It provides examples and explanations of each feature.
Main class --------------------------import java.awt.FlowLayout.pdf
Main class :-
-------------------------
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class Main {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
final InfixExperssionEvaluator ie = new InfixExperssionEvaluator();
JFrame frame = new JFrame(\"FrameDemo\");
frame.setSize(600,200);
frame.setLayout(new FlowLayout());
JPanel main = new JPanel(new GridLayout(3, 1));
JPanel panel1 = new JPanel(new GridLayout(1, 2));
panel1.setSize(500, 250);
panel1.add(new JLabel(\"Enter Infix Expression\"));
final JTextField field1 = new JTextField();
field1.setSize(150,100);
panel1.add(field1);
main.add(panel1);
JPanel panel2 = new JPanel(new GridLayout(1, 1));
panel1.setSize(300, 150);
JButton button = new JButton();
button.setSize(200, 100);
button.setText(\"Submit\");
panel2.add(button);
main.add(panel2);
JPanel panel3 = new JPanel(new GridLayout(1, 2));
panel3.add(new JLabel(\"Value : \"));
final JLabel lbl = new JLabel();
panel3.add(lbl);
main.add(panel3);
frame.getContentPane().add(main);
frame.setVisible(true);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (\"Submit\".equals(e.getActionCommand())) {
String expr = field1.getText();
lbl.setText(Double.toString(ie.infixToValue(expr)));
}
}
});
button.setActionCommand(\"Submit\");
String expr = \"((2*5)+(6/2))\";
System.out.println(\"value is ::\"+ ie.infixToValue(expr));
}
}
Class for Evaluate methods :-
-----------------------------------------
import java.util.ArrayDeque;
import java.util.HashMap;
import java.util.Map;
import java.util.Stack;
import java.util.StringTokenizer;
public class InfixExperssionEvaluator {
Stack expressionStack = new Stack();
Stack valueStack = new Stack(); //to hold only non-decimal values
public static final String OPERATORS=\"+-/*()\"; //ignore the \"(\" as an operator
//Map For Operator precedence Key(+,-,*,/) , value 0/1/2/3..
Map operator_levels = new HashMap();
public InfixExperssionEvaluator(){
operator_levels.put(\")\", 0);
operator_levels.put(\"*\", 1);
operator_levels.put(\"/\", 1);
operator_levels.put(\"+\", 2);
operator_levels.put(\"-\", 2);
operator_levels.put(\"(\", 3);
}
double infixToValue(String inputExpression) {
String eachNumber=\"\"; //to hold multiple digit values. lame idea, i know, but can\'t
think of anything else at 2 AM
int totalCharInInput = inputExpression.length();
inputExpression.replaceAll(\"\\\\s+\",\"\");
//Devide String to Tokens
StringTokenizer tokens = new StringTokenizer(inputExpression, \"{}()*/+-\", true);
//Loop through each Token
while(tokens.hasMoreTokens()){
String eachChar = tokens.nextToken();
if (isValidOperator(eachCh.
JavaOne 2016 - Learn Lambda and functional programming
This tutorial walks through tons of examples. You will learn everything you need to know about lambdas and functional programming in Java 8. I'm the supplier. You’re the consumer (and you will get the joke after the session).
Array list
The document discusses ArrayLists in Java. Key points include:
- ArrayLists allow dynamic resizing as elements are added, with O(1) access time. They support methods for insertion, deletion, and updating elements.
- ArrayLists can be iterated over using a for-each loop or indexed access.
- Common ArrayList methods include add(), get(), contains(), clear(), remove(), and size().
- Iterators can be used to iterate over ArrayLists in a single direction. ListIterators allow bidirectional traversal and modification of elements.
StackInterface An interface for the ADT stack. Do not modif.pdf
StackInterface
/**
An interface for the ADT stack.
Do not modify this file
*/
package PJ2;
public interface StackInterface
{
/** Gets the current number of data in this stack.
@return the integer number of entries currently in the stack*/
public int size();
/** Adds a new data to the top of this stack.
@param aData an object to be added to the stack */
public void push(T aData);
/** Removes and returns this stack\'s top data.
@return either the object at the top of the stack or,
if the stack is empty before the operation, null */
public T pop();
/** Retrieves this stack\'s top data.
@return either the data at the top of the stack or
null if the stack is empty */
public T peek();
/** Detects whether this stack is empty.
@return true if the stack is empty */
public boolean empty();
/** Removes all data from this stack */
public void clear();
} // end StackInterface
SimpleLinkedStack.java
/**
A class of stacks whose entries are stored in a chain of nodes.
Implement all methods in SimpleLinkedStack class using
the inner Node class.
Main Reference : text book or class notes
Do not change or add data fields
Do not add new methods
You may access Node object fields directly, i.e. data and next
*/
package PJ2;
public class SimpleLinkedStack implements StackInterface
{
// Data fields
private Node topNode; // references the first node in the chain
private int count; // number of data in this stack
public SimpleLinkedStack()
{
// add stataments
} // end default constructor
public void push(T newData)
{
// add stataments
} // end push
public T peek()
{
// add stataments
return null;
} // end peek
public T pop()
{
// add stataments
return null;
} // end pop
public boolean empty()
{
// add stataments
return false;
} // end empty
public int size()
{
// add stataments
return -1;
} // end isEmpty
public void clear()
{
// add stataments
} // end clear
public String toString()
{
// add stataments
// note: data class in stack must implement toString() method
// return a list of data in Stack, separate them with \',\'
return \"\";
}
/****************************************************
private inner node class
Do not modify this class!!
you may access data and next directly
***************************************************/
private class Node
{
private T data; // entry in list
private Node next; // link to next node
private Node (T dataPortion)
{
data = dataPortion;
next = null; // set next to NULL
} // end constructor
private Node (T dataPortion, Node nextNode)
{
data = dataPortion;
next = nextNode; // set next to refer to nextNode
} // end constructor
} // end Node
/****************************************************
Do not modify: Stack test
****************************************************/
public static void main (String args[])
{
System.out.println(\"\ \"+
\"*******************************************************\ \"+
\"Sample Expected output:\ \"+
\"\ \"+
\"OK: stack is empty\ \"+
\"Push 3 data: 10, 30, 50\ \"+
\"Print stack [50,30,10,]\ \"+
\"OK: sta.
Oop lecture9 13
This document discusses various iteration techniques in Java including for loops, iterators, and enhanced for loops. It provides examples of iterating over lists, sets, maps, and arrays. It also summarizes common object methods like toString(), equals(), hashCode(), and finalize(). The finalize() method is called by the garbage collector before an object is destroyed to allow for cleanup.
Java 5 and 6 New Features
The document summarizes new features introduced in Java 5 and Java 6. Java 5 introduced generics, autoboxing/unboxing, enhanced for loops, and annotations. Java 6 added support for XML processing and web services using annotations, the Rhino JavaScript engine, improved GUI APIs, and Java DB for database connectivity.
META-INFMANIFEST.MFManifest-Version 1.0.classpath.docx
META-INF/MANIFEST.MF
Manifest-Version: 1.0
.classpath
PriorityQueue.classpublicsynchronizedclass PriorityQueue {
Heap q;
public void PriorityQueue(int, java.util.Comparator);
public Object peek();
public Object remove();
void add(Object);
boolean isEmpty();
public int size();
}
PriorityQueue.javaPriorityQueue.javaimport java.util.Comparator;
publicclassPriorityQueue<E>{
Heap q;
/**
*PriorityQueue initializes the queue.
*
* @param initialCapacity an int that is the heaps initial size.
* @param comparator the priority of various imputs.
*/
publicPriorityQueue(int initialCapacity,Comparator<?super E> comparator){
q=newHeap(initialCapacity,comparator);
}
/**
* Peek, returns the next item in the queue without removing it.
*
* If it is empty then null is returned.
* @return the next item in the queue.
*/
public E peek(){
if(q.size()==0){
returnnull;
}
return(E) q.findMax();
}
/**
* This removes the first item from the queue.
*
* It returns null if the queue is empty.
* @return the first item in the queue.
*/
public E remove(){
if(q.size()==0){
returnnull;
}
return(E) q.removeMax();
}
/**
* This adds item to the queue
* @param item that is added to the queue.
*/
void add(E item){
q.insert(item);
}
/**
* isEmpty returns if the queue is empty or not.
*
* @return boolean if the queue is empty or not.
*/
boolean isEmpty(){
if(q.size()!=0){
returnfalse;
}
returntrue;
}
/**
* size returns the size of the queue.
*
* @return int the size of the queue.
*/
publicint size(){
return q.size();
}
}
ArithmeticExpression.classpublicsynchronizedclass ArithmeticExpression {
BinaryTree t;
java.util.ArrayList list;
String equation;
void ArithmeticExpression(String) throws java.text.ParseException;
public String toString(BinaryTree);
public String toPostfixString(BinaryTree);
void setVariable(String, int) throws java.rmi.NotBoundException;
public int evaluate(BinaryTree);
}
ArithmeticExpression.javaArithmeticExpression.javaimport java.rmi.NotBoundException;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Stack;
/**
* ArithmeticExpression takes equations in the form of strings creates a binary
* tree, and can return either the regular or postfix equation. It also allows
* them to be calculated.
*
*
* Extra Credit:
* ** it can handle spaces or no spaces in the string inputted. ** it can return
* regular or postfix notation
*
* @author tai-lanhirabayashi
*
*/
publicclassArithmeticExpression{
BinaryTree t;
ArrayList list;
String equation;
/**
* ArithmeticExpression is the construction which takes in a space
* delimitated equation containing "*,/,+,-" symbols and converts it into a
* binary tree.
*
* If the expression is not valid it will throw a ParseException. This is ...
Information Technology, Computer Networks and CyberspaceKizza (201.docx
Information Technology, Computer Networks and Cyberspace
Kizza (2014) largely treated cyber-attacks as “cybercrime,” conveying the assumption that these attacks are by definition illegitimate and criminal. However, he occasionally seems to recognize that there might be motives that are more ambiguous and may have a social, moral, or political basis. Lessig (2006) also referred to Internet hacker ethic as rebellious and libertarian and not always criminal in a moral sense. One example cited by Kizza (2014) is the Seattle WTO protest and mass computer attacks that are “increasingly being used to avenge what the attackers consider to be injustices” (p. 97). Another example we discussed was the Stratfor attack. Also, recently we see many examples of cyber security invasions by governments and corporations.
Search the Internet to find an example of a hacking activity or situation that represents a morally, ethically, or criminally ambiguous situation but is different from any examples you used in other assignments for this course.
Write a critical essay that addresses the following items:
Cite and briefly describe your example.
Apply what you have learned from the course to this point to identify arguments both in support of and critical of the behavior of the attackers.
Describe and explain the relationships among morality, ethics, law, and crime as they intersect in the case example that you have found.
Cite Winner’s “Do Artifacts Have Politics?” to identify and explain the political, moral, and ethical choices and consequences that may be embedded in technical choices and artifacts described in your example.
Discuss and cite the article “Do Artifacts Have Politics?”, the source of your example, and at least one additional credible or scholarly source other than the course textbook to support your analysis and positions. You may cite the course textbooks as well if you wish. Use standards and APA style guidelines, citing references as appropriate. Your paper should be two to three pages in length. Before submitting your final version, be sure to submit a draft version to the TurnItIn Checker.
I will support you with
Kizza (2014) and Lessig (2006)
Textbook
.
Information to use for paperStep 1 Select your topic and focus.docx
Information to use for paper:
Step 1: Select your topic and focus question! Read the topics from the list on page 2 of this document and choose the topic and focus that interests you. Fill out the box below.
What’s your topic and focus question?
Topic:
This Land is My Land
Focus Question:
Evaluate the impact of the Pequot War on either the Europeans or Natives.
Step 2: In 50 words or more, state why you chose the topic and focus question that you chose. It could be how the topic is of interest to you and that you have studied it previously, or it could be a subject that you want to learn more about something of which you do not have knowledge.
I opted for “This Land is My Land” topic due to my insightful interest to explore historical events related to patriotism and balancing power between Europeans and Natives in situations such as trade negotiations. The trade aspect drove me to be specific on the focus question that need to address the impacts of Pequot War to Europeans and Natives. In this case, the contact of both had profound effect where balance of power shifted overnight from natives to Europeans. My choice is therefore grounded on the enthusiasm to discover more knowledge into this particular aspect.
Step 3: List the two primary source and two secondary sources that you have chosen in the boxes below.
Source Type
Source Name
Primary Source #1
Indian Complaints about English Settlers, 1675
Primary Source #2
Edward Randolph’s Report of King Philip’s War, 1675
Secondary Source #1
Adam J. Hirsch, “The Collision of Military Cultures in Seventeenth-Century New England.”
Secondary Source #2
Michal L. Fickes, “’They Could Not Endure that Yoke’: The Capitivity of Pequot Women and Children after the War of 1637”
Step 4: In 50 words or more, describe your initial thoughts about how your sources relate to your chosen topic and focus. Make sure to provide specific examples from each of the four sources that illustrate how they will help you answer your focus question. This will help you begin to think about the form of your paper!
In primary #1 the natives who were the Indians, revolted against the Europeans led by King Phillip which meant the next combinations of Indians to threaten European dominance after
Pequot War
. Primary #2 contribute to this research since
Randolph, sent by King James II, compiled a report to account for the war involving Indians and colonies led by King Phillip.
On the other hand, secondary #1 is relevant to this paper since it analyze military conflicts in 17th-century, warfare practice in Europe; facets of native warfare of Indians and differences between European and native military prowess. Finally, Secondary #2 inputs to my compilation as it addresses how natives of New England were enslaved as it document how Europeans eventually thought of
Pequot War
as the “civilized” English versus the “savage” natives. The colonialists killed and enslaved Pequot women and children.
Topic instructions:
.
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java write a program to evaluate the postfix expressionthe program.pdf
java write a program to evaluate the postfix expression
the program should ask users for input and show the postfix epression and then the result.
and to have a try and catch exception since we have an empty stack
Solution
Postfix.java
import java.util.Scanner;
public class Postfix
{
/**
* Reads and evaluates multiple postfix expressions.
*/
public static void main (String[] args)
{
String expression, again;
int result;
try
{
Scanner in = new Scanner(System.in);
do
{
PostfixEvaluator evaluator = new PostfixEvaluator();
System.out.println (\"Enter a valid postfix expression: \");
expression = in.nextLine();
result = evaluator.evaluate (expression);
System.out.println();
System.out.println (\"That expression equals \" + result);
System.out.print (\"Evaluate another expression [Y/N]? \");
again = in.nextLine();
System.out.println();
}
while (again.equalsIgnoreCase(\"y\"));
}
catch (Exception IOException)
{
System.out.println(\"Input exception reported\");
}
}
}
PostfixEvaluator.java
//import datastructures.ArrayStack;
import java.util.StringTokenizer;
public class PostfixEvaluator
{
/** constant for addition symbol */
private final char ADD = \'+\';
/** constant for subtraction symbol */
private final char SUBTRACT = \'-\';
/** constant for multiplication symbol */
private final char MULTIPLY = \'*\';
/** constant for division symbol */
private final char DIVIDE = \'/\';
/** the stack */
private ArrayStack stack;
/**
* Sets up this evaluator by creating a new stack.
*/
public PostfixEvaluator()
{
stack = new ArrayStack();
}
/**
* Evaluates the specified postfix expression. If an operand is
* encountered, it is pushed onto the stack. If an operator is
* encountered, two operands are popped, the operation is
* evaluated, and the result is pushed onto the stack.
* //param expr String representation of a postfix expression
* //return int value of the given expression
*/
public int evaluate (String expr)
{
int op1, op2, result = 0;
String token;
StringTokenizer tokenizer = new StringTokenizer (expr);
while (tokenizer.hasMoreTokens())
{
token = tokenizer.nextToken();
if (isOperator(token))
{
op2 = (stack.pop()).intValue();
op1 = (stack.pop()).intValue();
result = evalSingleOp (token.charAt(0), op1, op2);
stack.push (new Integer(result));
}
else
stack.push (new Integer(Integer.parseInt(token)));
}
return result;
}
/**
* Determines if the specified token is an operator.
* //param token String representing a single token
* //return boolean true if token is operator
*/
private boolean isOperator (String token)
{
return ( token.equals(\"+\") || token.equals(\"-\") ||
token.equals(\"*\") || token.equals(\"/\") );
}
/**
* Performs integer evaluation on a single expression consisting of
* the specified operator and operands.
* //param operation operation to be performed
* //param op1 the first operand
* //param op2 the second operand
* //return int value of the expression
*/
private int evalSingleOp (char operation, int op1, int op2)
{
int result = 0;
switch .
Please review my code (java)Someone helped me with it but i cannot.pdf
Please make it to clear 12-95. The basketball passed through the hoop even though it barely
cleared the hands of the player B who attempted to block it. Neglecting the size of the ball,
determine the magnitude vn of its initial velocity and the height h of the ball when it passes over
player B 10 ft 5 ft Prob. 12-95
Solution
Consider the motion along horizontal direction
Vox = initial velocity in horizontal direction = Va Cos30
X = horizontal distance = 25 + 3 = 28 ft
t = time taken
t = X / Vox = 28/(Va Cos30) eq-1
consider the motion in vertical direction
Y = vertical displacement = 10 - 7 = 3 ft
a = acceleration = - 32.2
Voy = initial velocity = Va Sin30
t = time taken
using the equation
Y = Voy t + (0.5) a t2
3 = (Va Sin30) (28/(Va Cos30)) + (0.5) (- 32.2) (28/(Va Cos30))2
Va = 35.8 m/s
t\' = time taken to reach B = 25 / (Va Cos30) = 25 / (35.8 Cos30) = 0.81 sec
h = 7 + Voy t\' + (0.5) a t\'2
h = 7 + (35.8 Sin30) (0.81) + (0.5) (- 32.2) (0.81)2
h = 10.94 ft.
Creat Shape classes from scratch DETAILS You will create 3 shape cla.pdf
Creat Shape classes from scratch DETAILS You will create 3 shape classes (Circle, Rectangle,
Triangle) that all inherit from a single abstract class called AbstractShape which implements
Shape (also created by you). You are also responsible for creating the driver class
\"Assignment7.java\" (program that tests your classes and described on page 3) which does the
following reads input data from a file instantiates various objects of the three shapes based on the
input data stores each in a LinkedList outputs this list to an output file sorts a \"copy\" of this
LinkedList of objects outputs the sorted version of the list to the output file outputs the original
list to the output file This driver program also needs to \"ignore errors in the input file that breach
the specified input format as described in the Assianment7,java details (see page 3 1. Shape.java
This is an interface that has 2 abstract methods, and passes the responsibility of implementing the
compareTo method to the class that implements Shape (you may note, nomally Comparable is
\"implemented\" by a class. However, an interface cannot implement because interfaces can only
contain abstract methods. That said, an interface can only extend other interfaces and the
responsibility of actually \"implementing\" the abstract method(s) of the super class interface is
passed on to the sub-classes) public interface Shape extends Comparable public double
calculateAreal) Il This abstract method is implemented at the concrete level public Shape
copyShape); Il also implemented at the concrete level 2. AbstractShape.java public abstract class
AbstractShape implements Shape This class should contain an instance field to store the name of
each obiect. The constructor which sets this field should receive the name and a number to be
concatenated to the name and then stored in the name field Recall, when the super class has a
parameterized constructor, the sub-classes will need to call it AND the sub- classes will need to
also provide a constructor without parameters This abstract class will implement the compareTo
method passed on from the Shape interface and will pass on the responsibility of implementing
calculateArea to the extending sub-classes (compare To will use the calculateArea method when
comparing 2 Shape objects). Along with compare To, one more concrete method should be
included. The following will be used by the sub-classes\' toString method: public String
getName) II Simply returns the name field data
Solution
in7.txt
4.4
2.5 3
8.1 3.0 5.0
2.5 3 4
2.5
tuesday
-7
1.0
3 three
3 -9
3 5
1.0
Assignment7.java
import java.io.*;
import java.util.*;
public class Assignment7 {
/**
* This is the test driver class that will include main.
* This program MUST read a file named in7.txt and
* generate an output file named out7.txt. The in7.txt
* file must be created by you based on formatting
* described shortly.
*
* @param theArgs
*/
public static void main(String[] theArgs) {
List myList = new Arra.
Laporan ai modul 2-if b 2014-14102055-deprilana ego prakasa
This document discusses an implementation of depth-first search (DFS) and breadth-first search (BFS) algorithms on a graph data structure. It includes Java code for Vertex, Graph, and Main classes that define a graph, add vertices and edges, and perform DFS and BFS searches. The Main class includes examples of constructing graphs and calling the search methods. Questions are provided at the end for testing DFS and BFS on additional graph examples.
Complete the implementation of the Weighted Graph that we began in t.pdf
Complete the implementation of the Weighted Graph that we began in this chapter by provide
bodies for the methods isEmpty, isFull, hasVertex, clearMarks, markVertex, isMarked, and
getUnmarked in the WeightedGraph.java file. Test the completed implementation using the
UseGraph class. When implementing hasVertex, dont forget to use the equals mehtod to
compare vertices. Java Code.
// Incomplete version
//----------------------------------------------------------------------------
// WeightedGraph.java by Dale/Joyce/Weems Chapter 9
//
// Implements a directed graph with weighted edges.
// Vertices are objects of class T and can be marked as having been visited.
// Edge weights are integers.
// Equivalence of vertices is determined by the vertices\' equals method.
//
// General precondition: Except for the addVertex and hasVertex methods,
// any vertex passed as an argument to a method is in this graph.
//----------------------------------------------------------------------------
package ch09.graphs;
import ch05.queues.*;
public class WeightedGraph implements WeightedGraphInterface
{
public static final int NULL_EDGE = 0;
private static final int DEFCAP = 50; // default capacity
private int numVertices;
private int maxVertices;
private T[] vertices;
private int[][] edges;
private boolean[] marks; // marks[i] is mark for vertices[i]
public WeightedGraph()
// Instantiates a graph with capacity DEFCAP vertices.
{
numVertices = 0;
maxVertices = DEFCAP;
vertices = (T[]) new Object[DEFCAP];
marks = new boolean[DEFCAP];
edges = new int[DEFCAP][DEFCAP];
}
public WeightedGraph(int maxV)
// Instantiates a graph with capacity maxV.
{
numVertices = 0;
maxVertices = maxV;
vertices = (T[]) new Object[maxV];
marks = new boolean[maxV];
edges = new int[maxV][maxV];
}
public boolean isEmpty()
// Returns true if this graph is empty; otherwise, returns false.
{
}
public boolean isFull()
// Returns true if this graph is full; otherwise, returns false.
{
}
public void addVertex(T vertex)
// Preconditions: This graph is not full.
// Vertex is not already in this graph.
// Vertex is not null.
//
// Adds vertex to this graph.
{
vertices[numVertices] = vertex;
for (int index = 0; index < numVertices; index++)
{
edges[numVertices][index] = NULL_EDGE;
edges[index][numVertices] = NULL_EDGE;
}
numVertices++;
}
public boolean hasVertex(T vertex)
// Returns true if this graph contains vertex; otherwise, returns false.
{
}
private int indexIs(T vertex)
// Returns the index of vertex in vertices.
{
int index = 0;
while (!vertex.equals(vertices[index]))
index++;
return index;
}
public void addEdge(T fromVertex, T toVertex, int weight)
// Adds an edge with the specified weight from fromVertex to toVertex.
{
int row;
int column;
row = indexIs(fromVertex);
column = indexIs(toVertex);
edges[row][column] = weight;
}
public int weightIs(T fromVertex, T toVertex)
// If edge from fromVertex to toVertex exists, returns the weight of edge;
// otherwise, returns a special “null-edge” value..
Write a program that converts an infix expression into an equivalent.pdf
Write a program that converts an infix expression into an equivalent postfix expression. The
rules to convert an infix expression into an equivalent postfix expression are as follows (C++):
Initialize pfx to an empty expression and also initialize the stack.
Get the next symbol, sym, from infx.
If sym is an operand, append sym to pfx.
If sym is (, push sym into the stack.
If sym is ), pop and append all of the symbols from the stack until the most recent left
parentheses. Pop and discard the left parentheses.
If sym is an operator:
Pop and append all of the operators from the stack to pfx that are above the most recent left
parentheses and have precedence greater than or equal to sym.
Push sym onto the stack.
After processing infx, some operators might be left in the stack. Pop and append to pfx
everything from the stack.
In this program, you will consider the following (binary) arithmetic operators: +, -, *, and /.
You may assume that the expressions you will process are error free. Design a class that stores
the infix and postfix strings. The class must include the following operations:
getInfix: Stores the infix expression.
showInfix: Outputs the infix expression.
showPostfix: Outputs the postfix expression.
convertToPostfix: Converts the infix expression into a postfix expression. The resulting postfix
expression is stored in pfx.
precedence: Determines the precedence between two operators. If the first operator is of higher
or equal precedence than the second operator, it returns the value true; otherwise, it returns the
value false.
A + B - C;
(A + B ) * C;
(A + B) * (C - D);
A + ((B + C) * (E - F) - G) / (H - I);
A + B * (C + D ) - E / F * G + H;
Infix Expression: A+B-C;
Postfix Expression: AB+C-
Infix Expression: (A+B)*C;
Postfix Expression: AB+C*
Infix Expression: (A+B)*(C-D);
Postfix Expression: AB+CD-*
Infix Expression: A+((B+C)*(E-F)-G)/(H-I);
Postfix Expression: ABC+EF-*G-HI-/+
Infix Expression: A+B*(C+D)-E/F*G+H;
Postfix Expression: ABCD+*+EF/G*-H+
Turn in:
A UML diagram for your class.
The header file for your class.
The implementation file for your class.
The source code for your test program. (C++)
(Below already done code.)
//Header file: myStack.h
#ifndef H_StackType
#define H_StackType
#include
#include
#include \"stackADT.h\"
using namespace std;
template
class stackType: public stackADT
{
public:
const stackType& operator=(const stackType&);
//Overload the assignment operator.
void initializeStack();
//Function to initialize the stack to an empty state.
//Postcondition: stackTop = 0
bool isEmptyStack() const;
//Function to determine whether the stack is empty.
//Postcondition: Returns true if the stack is empty,
// otherwise returns false.
bool isFullStack() const;
//Function to determine whether the stack is full.
//Postcondition: Returns true if the stack is full,
// otherwise returns false.
void push(const Type& newItem);
//Function to add newItem to the stack.
//Precondition: The stack exists and is not full.
//Postc.
ScalaFlavor4J
ScalaFlavor4J provides you Scala flavored useful API in Java.
https://github.com/m3dev/scalaflavor4j
Java Question help needed In the program Fill the Add statements.pdf
Item 8 Singly ionized (one electron removed) atoms are accelerated and then passed through a
velocity selector consisting of perpendicular electric and magnetic fields. The electric field is 158
V/m and the magnetic field is 3.13 Times 10^2 T. The ions next enter a uniform magnetic field
of magnitude 1.73 Times 10^-2 T that is oriented perpendicular to their velocity. How fast are
the ions moving when they emerge from the velocity selector? If the radius of the path of the
ions in the second magnetic field is 17.4 cm, what is their mass?
Solution
A)
In Velocity selector Electric field & Magnetic field forces on ions are equal & opposite ,this is
because it allows ions with a particular velocity only passes undeflected.
so we can say,
Bqv = Eq
B:magnetic field density
E:Electric field
v:velocity at which the ions remains undeflected.
v=E/B
v = 158V/m / 3.13*10-2 T
=> v = 4.78*103 m/s
B)
as it enteres next in uniform magnetic field of value B=1.73*10-2 T
Work done in uniform magnetic field is zero.It only changes the direction.So B provides
centripetal force for the ions while changing direction in circular path of radius r=17.4cm.
Bqv = mv²/r
m = Bqr / v = (1.73*10-2T)(1.6*10-19C)(0.174m) / (4.78*103m/s)
=>m = 1*10-25 kg.
Write a program that reads a graph from a file and determines whether.docx
The document describes a program that reads a graph from a file, determines if the graph is connected, and performs depth-first search (DFS) on the graph. It prompts the user for a file, reads the graph data, creates an unweighted graph, prints the edges, and uses DFS to check if the number of visited vertices matches the total. If so, the graph is connected.
1 Part I written exercises.1. Using the Red-Black Tre.docx
1
Part I: written exercises.
1. Using the Red-Black Tree applet, you input the following numbers into the Red-Black tree, keep all red-black rules ( see the red-black rule on the bottom of the exercise ) either using color changes or rotation. The result graph should be height balance and red-black correct.
You need to follow the rules, randomly color change and rotation will result in zero credit even the result could be red-black correct.
Attach your results of screen shots for every question.
a. Insert 50, 70, 20, 90
b. Insert 50, 70, 20, 90, 99
c. Insert 50, 70, 20, 90, 80
d. Insert 50, 70, 20, 80, 60, 90, 75, 95
e. Insert 50, 70, 20, 90, 60, 55, 65, 68
Red-Black Rules
When inserting (or deleting) a new node, certain rules, which we call the red-black rules, must be followed. If they’re followed, the tree will be balanced. Let’s lookbriefly at these rules:
1. Every node is either red or black.
2. The root is always black.
3. If a node is red, its children must be black (although the converse isn’t necessarily true).
4. Every path from the root to a leaf, or to a null child, must contain the same
number of black nodes.
2. Given input {4371, 1323, 6173, 4199, 4344, 9679, 1989} and a hash function h(x) = x %10 (table size is 10), showing the resulting
a. Separate chaining hash table
b. Open addressing hash table using linear probing.
c. Open addressing hash table using quadratic probing.
d. Open addressing hash table with second hash function h2(x) = 7- (x %7)
3. Draw the figures to show steps how to convert the binary tree to a heap using the Heapify algorithm.
(
4
5
2
6
7
3
1
)
4. Using the diagrams (see the attached example of heap sort) to trace the action of heapsort on the list of 1, 7, 2, 6, 3, 5, 4, give every state of your tree such as finishing a heapify or removing the root.
Part II: programming exercise
Implement the PriorityQ class in the priorityQ.java program (Listing 4.6) using
a heap instead of an array. You should be able to use the Heap class in the
heap.java program (Listing 12.1) without modification. Make it a descending
queue (largest item is removed).
Listing 4.6
The priorityQ.java Program
// priorityQ.java
// demonstrates priority queue
// to run this program: C>java PriorityQApp
////////////////////////////////////////////////////////////////
class PriorityQ
{
// array in sorted order, from max at 0 to min at size-1
private int maxSize;
private long[] queArray;
private int nItems;
//-------------------------------------------------------------
public PriorityQ(int s) // constructor
{
maxSize = s;
queArray = new long[maxSize];
nItems = 0;
}
//-------------------------------------------------------------
public void insert(long item) // insert item
{
int j;
if(nItems==0) // if no items,
queArray[nItems++] = item; // insert at 0
else // if items,
{
for(j=nItems-1; j>=0; j--) // start at end,
{
if( item > queArray[j] ) // if new item larger,
queArray[j+1] = queArray[ ...
Using NetBeansImplement a queue named QueueLL using a Linked List .pdf
Using NetBeans
Implement a queue named QueueLL using a Linked List (same as we did for the stack). This
implementation must be used in all the following problems.
Implement a queue QueueST using a stack (use StackLL).
Test your implementations in the main with examples.
Solution
Answer:-
import java.util.*;
/* Class Node */
class Node
{
protected int data;
protected Node link;
/* Constructor */
public Node()
{
link = null;
data = 0;
}
/* Constructor */
public Node(int d,Node n)
{
data = d;
link = n;
}
/* Function to set link to next Node */
public void setLink(Node n)
{
link = n;
}
/* Function to set data to current Node */
public void setData(int d)
{
data = d;
}
/* Function to get link to next node */
public Node getLink()
{
return link;
}
/* Function to get data from current Node */
public int getData()
{
return data;
}
}
/* Class linkedQueue */
class linkedQueue
{
protected Node front, rear;
public int size;
/* Constructor */
public linkedQueue()
{
front = null;
rear = null;
size = 0;
}
/* Function to check if queue is empty */
public boolean isEmpty()
{
return front == null;
}
/* Function to get the size of the queue */
public int getSize()
{
return size;
}
/* Function to insert an element to the queue */
public void insert(int data)
{
Node nptr = new Node(data, null);
if (rear == null)
{
front = nptr;
rear = nptr;
}
else
{
rear.setLink(nptr);
rear = rear.getLink();
}
size++ ;
}
/* Function to remove front element from the queue */
public int remove()
{
if (isEmpty() )
throw new NoSuchElementException(\"Underflow Exception\");
Node ptr = front;
front = ptr.getLink();
if (front == null)
rear = null;
size-- ;
return ptr.getData();
}
/* Function to check the front element of the queue */
public int peek()
{
if (isEmpty() )
throw new NoSuchElementException(\"Underflow Exception\");
return front.getData();
}
/* Function to display the status of the queue */
public void display()
{
System.out.print(\"\ Queue = \");
if (size == 0)
{
System.out.print(\"Empty\ \");
return ;
}
Node ptr = front;
while (ptr != rear.getLink() )
{
System.out.print(ptr.getData()+\" \");
ptr = ptr.getLink();
}
System.out.println();
}
}
/* Class LinkedQueueImplement */
public class LinkedQueueImplement
{
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
/* Creating object of class linkedQueue */
linkedQueue lq = new linkedQueue();
/* Perform Queue Operations */
System.out.println(\"Linked Queue Test\ \");
char ch;
do
{
System.out.println(\"\ Queue Operations\");
System.out.println(\"1. insert\");
System.out.println(\"2. remove\");
System.out.println(\"3. peek\");
System.out.println(\"4. check empty\");
System.out.println(\"5. size\");
int choice = scan.nextInt();
switch (choice)
{
case 1 :
System.out.println(\"Enter integer element to insert\");
lq.insert( scan.nextInt() );
break;
case 2 :
try
{
System.out.println(\"Removed Element = \"+ lq.remove());
}
catch (Exception e)
{
System.out.println(\"Error : \" + e.getMessage());
}
break;
case 3 .
Internal workshop es6_2015
This document provides an overview of ES6 (ECMAScript 2015) features including: let, const and var; template strings; arrow functions; destructuring; default parameters; rest and spread syntax; iterators; classes; modules; maps, sets, weakmaps and weaksets; promises; and more. It explains each feature and provides code examples to demonstrate usage and differences from ES5. Browser compatibility notes are also included to advise on safe usage of new features across environments.
Java 5 Features
The document summarizes several Java 5 features including generics, enhanced for loops, autoboxing/unboxing, typesafe enums, varargs, static imports, and annotations. It provides examples and explanations of each feature.
Main class --------------------------import java.awt.FlowLayout.pdf
Main class :-
-------------------------
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class Main {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
final InfixExperssionEvaluator ie = new InfixExperssionEvaluator();
JFrame frame = new JFrame(\"FrameDemo\");
frame.setSize(600,200);
frame.setLayout(new FlowLayout());
JPanel main = new JPanel(new GridLayout(3, 1));
JPanel panel1 = new JPanel(new GridLayout(1, 2));
panel1.setSize(500, 250);
panel1.add(new JLabel(\"Enter Infix Expression\"));
final JTextField field1 = new JTextField();
field1.setSize(150,100);
panel1.add(field1);
main.add(panel1);
JPanel panel2 = new JPanel(new GridLayout(1, 1));
panel1.setSize(300, 150);
JButton button = new JButton();
button.setSize(200, 100);
button.setText(\"Submit\");
panel2.add(button);
main.add(panel2);
JPanel panel3 = new JPanel(new GridLayout(1, 2));
panel3.add(new JLabel(\"Value : \"));
final JLabel lbl = new JLabel();
panel3.add(lbl);
main.add(panel3);
frame.getContentPane().add(main);
frame.setVisible(true);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (\"Submit\".equals(e.getActionCommand())) {
String expr = field1.getText();
lbl.setText(Double.toString(ie.infixToValue(expr)));
}
}
});
button.setActionCommand(\"Submit\");
String expr = \"((2*5)+(6/2))\";
System.out.println(\"value is ::\"+ ie.infixToValue(expr));
}
}
Class for Evaluate methods :-
-----------------------------------------
import java.util.ArrayDeque;
import java.util.HashMap;
import java.util.Map;
import java.util.Stack;
import java.util.StringTokenizer;
public class InfixExperssionEvaluator {
Stack expressionStack = new Stack();
Stack valueStack = new Stack(); //to hold only non-decimal values
public static final String OPERATORS=\"+-/*()\"; //ignore the \"(\" as an operator
//Map For Operator precedence Key(+,-,*,/) , value 0/1/2/3..
Map operator_levels = new HashMap();
public InfixExperssionEvaluator(){
operator_levels.put(\")\", 0);
operator_levels.put(\"*\", 1);
operator_levels.put(\"/\", 1);
operator_levels.put(\"+\", 2);
operator_levels.put(\"-\", 2);
operator_levels.put(\"(\", 3);
}
double infixToValue(String inputExpression) {
String eachNumber=\"\"; //to hold multiple digit values. lame idea, i know, but can\'t
think of anything else at 2 AM
int totalCharInInput = inputExpression.length();
inputExpression.replaceAll(\"\\\\s+\",\"\");
//Devide String to Tokens
StringTokenizer tokens = new StringTokenizer(inputExpression, \"{}()*/+-\", true);
//Loop through each Token
while(tokens.hasMoreTokens()){
String eachChar = tokens.nextToken();
if (isValidOperator(eachCh.
JavaOne 2016 - Learn Lambda and functional programming
This tutorial walks through tons of examples. You will learn everything you need to know about lambdas and functional programming in Java 8. I'm the supplier. You’re the consumer (and you will get the joke after the session).
Array list
The document discusses ArrayLists in Java. Key points include:
- ArrayLists allow dynamic resizing as elements are added, with O(1) access time. They support methods for insertion, deletion, and updating elements.
- ArrayLists can be iterated over using a for-each loop or indexed access.
- Common ArrayList methods include add(), get(), contains(), clear(), remove(), and size().
- Iterators can be used to iterate over ArrayLists in a single direction. ListIterators allow bidirectional traversal and modification of elements.
StackInterface An interface for the ADT stack. Do not modif.pdf
StackInterface
/**
An interface for the ADT stack.
Do not modify this file
*/
package PJ2;
public interface StackInterface
{
/** Gets the current number of data in this stack.
@return the integer number of entries currently in the stack*/
public int size();
/** Adds a new data to the top of this stack.
@param aData an object to be added to the stack */
public void push(T aData);
/** Removes and returns this stack\'s top data.
@return either the object at the top of the stack or,
if the stack is empty before the operation, null */
public T pop();
/** Retrieves this stack\'s top data.
@return either the data at the top of the stack or
null if the stack is empty */
public T peek();
/** Detects whether this stack is empty.
@return true if the stack is empty */
public boolean empty();
/** Removes all data from this stack */
public void clear();
} // end StackInterface
SimpleLinkedStack.java
/**
A class of stacks whose entries are stored in a chain of nodes.
Implement all methods in SimpleLinkedStack class using
the inner Node class.
Main Reference : text book or class notes
Do not change or add data fields
Do not add new methods
You may access Node object fields directly, i.e. data and next
*/
package PJ2;
public class SimpleLinkedStack implements StackInterface
{
// Data fields
private Node topNode; // references the first node in the chain
private int count; // number of data in this stack
public SimpleLinkedStack()
{
// add stataments
} // end default constructor
public void push(T newData)
{
// add stataments
} // end push
public T peek()
{
// add stataments
return null;
} // end peek
public T pop()
{
// add stataments
return null;
} // end pop
public boolean empty()
{
// add stataments
return false;
} // end empty
public int size()
{
// add stataments
return -1;
} // end isEmpty
public void clear()
{
// add stataments
} // end clear
public String toString()
{
// add stataments
// note: data class in stack must implement toString() method
// return a list of data in Stack, separate them with \',\'
return \"\";
}
/****************************************************
private inner node class
Do not modify this class!!
you may access data and next directly
***************************************************/
private class Node
{
private T data; // entry in list
private Node next; // link to next node
private Node (T dataPortion)
{
data = dataPortion;
next = null; // set next to NULL
} // end constructor
private Node (T dataPortion, Node nextNode)
{
data = dataPortion;
next = nextNode; // set next to refer to nextNode
} // end constructor
} // end Node
/****************************************************
Do not modify: Stack test
****************************************************/
public static void main (String args[])
{
System.out.println(\"\ \"+
\"*******************************************************\ \"+
\"Sample Expected output:\ \"+
\"\ \"+
\"OK: stack is empty\ \"+
\"Push 3 data: 10, 30, 50\ \"+
\"Print stack [50,30,10,]\ \"+
\"OK: sta.
Oop lecture9 13
This document discusses various iteration techniques in Java including for loops, iterators, and enhanced for loops. It provides examples of iterating over lists, sets, maps, and arrays. It also summarizes common object methods like toString(), equals(), hashCode(), and finalize(). The finalize() method is called by the garbage collector before an object is destroyed to allow for cleanup.
Java 5 and 6 New Features
The document summarizes new features introduced in Java 5 and Java 6. Java 5 introduced generics, autoboxing/unboxing, enhanced for loops, and annotations. Java 6 added support for XML processing and web services using annotations, the Rhino JavaScript engine, improved GUI APIs, and Java DB for database connectivity.
META-INFMANIFEST.MFManifest-Version 1.0.classpath.docx
META-INF/MANIFEST.MF
Manifest-Version: 1.0
.classpath
PriorityQueue.classpublicsynchronizedclass PriorityQueue {
Heap q;
public void PriorityQueue(int, java.util.Comparator);
public Object peek();
public Object remove();
void add(Object);
boolean isEmpty();
public int size();
}
PriorityQueue.javaPriorityQueue.javaimport java.util.Comparator;
publicclassPriorityQueue<E>{
Heap q;
/**
*PriorityQueue initializes the queue.
*
* @param initialCapacity an int that is the heaps initial size.
* @param comparator the priority of various imputs.
*/
publicPriorityQueue(int initialCapacity,Comparator<?super E> comparator){
q=newHeap(initialCapacity,comparator);
}
/**
* Peek, returns the next item in the queue without removing it.
*
* If it is empty then null is returned.
* @return the next item in the queue.
*/
public E peek(){
if(q.size()==0){
returnnull;
}
return(E) q.findMax();
}
/**
* This removes the first item from the queue.
*
* It returns null if the queue is empty.
* @return the first item in the queue.
*/
public E remove(){
if(q.size()==0){
returnnull;
}
return(E) q.removeMax();
}
/**
* This adds item to the queue
* @param item that is added to the queue.
*/
void add(E item){
q.insert(item);
}
/**
* isEmpty returns if the queue is empty or not.
*
* @return boolean if the queue is empty or not.
*/
boolean isEmpty(){
if(q.size()!=0){
returnfalse;
}
returntrue;
}
/**
* size returns the size of the queue.
*
* @return int the size of the queue.
*/
publicint size(){
return q.size();
}
}
ArithmeticExpression.classpublicsynchronizedclass ArithmeticExpression {
BinaryTree t;
java.util.ArrayList list;
String equation;
void ArithmeticExpression(String) throws java.text.ParseException;
public String toString(BinaryTree);
public String toPostfixString(BinaryTree);
void setVariable(String, int) throws java.rmi.NotBoundException;
public int evaluate(BinaryTree);
}
ArithmeticExpression.javaArithmeticExpression.javaimport java.rmi.NotBoundException;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Stack;
/**
* ArithmeticExpression takes equations in the form of strings creates a binary
* tree, and can return either the regular or postfix equation. It also allows
* them to be calculated.
*
*
* Extra Credit:
* ** it can handle spaces or no spaces in the string inputted. ** it can return
* regular or postfix notation
*
* @author tai-lanhirabayashi
*
*/
publicclassArithmeticExpression{
BinaryTree t;
ArrayList list;
String equation;
/**
* ArithmeticExpression is the construction which takes in a space
* delimitated equation containing "*,/,+,-" symbols and converts it into a
* binary tree.
*
* If the expression is not valid it will throw a ParseException. This is ...
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More from widdowsonerica
Information Technology, Computer Networks and CyberspaceKizza (201.docx
Information Technology, Computer Networks and Cyberspace
Kizza (2014) largely treated cyber-attacks as “cybercrime,” conveying the assumption that these attacks are by definition illegitimate and criminal. However, he occasionally seems to recognize that there might be motives that are more ambiguous and may have a social, moral, or political basis. Lessig (2006) also referred to Internet hacker ethic as rebellious and libertarian and not always criminal in a moral sense. One example cited by Kizza (2014) is the Seattle WTO protest and mass computer attacks that are “increasingly being used to avenge what the attackers consider to be injustices” (p. 97). Another example we discussed was the Stratfor attack. Also, recently we see many examples of cyber security invasions by governments and corporations.
Search the Internet to find an example of a hacking activity or situation that represents a morally, ethically, or criminally ambiguous situation but is different from any examples you used in other assignments for this course.
Write a critical essay that addresses the following items:
Cite and briefly describe your example.
Apply what you have learned from the course to this point to identify arguments both in support of and critical of the behavior of the attackers.
Describe and explain the relationships among morality, ethics, law, and crime as they intersect in the case example that you have found.
Cite Winner’s “Do Artifacts Have Politics?” to identify and explain the political, moral, and ethical choices and consequences that may be embedded in technical choices and artifacts described in your example.
Discuss and cite the article “Do Artifacts Have Politics?”, the source of your example, and at least one additional credible or scholarly source other than the course textbook to support your analysis and positions. You may cite the course textbooks as well if you wish. Use standards and APA style guidelines, citing references as appropriate. Your paper should be two to three pages in length. Before submitting your final version, be sure to submit a draft version to the TurnItIn Checker.
I will support you with
Kizza (2014) and Lessig (2006)
Textbook
.
Information to use for paperStep 1 Select your topic and focus.docx
Information to use for paper:
Step 1: Select your topic and focus question! Read the topics from the list on page 2 of this document and choose the topic and focus that interests you. Fill out the box below.
What’s your topic and focus question?
Topic:
This Land is My Land
Focus Question:
Evaluate the impact of the Pequot War on either the Europeans or Natives.
Step 2: In 50 words or more, state why you chose the topic and focus question that you chose. It could be how the topic is of interest to you and that you have studied it previously, or it could be a subject that you want to learn more about something of which you do not have knowledge.
I opted for “This Land is My Land” topic due to my insightful interest to explore historical events related to patriotism and balancing power between Europeans and Natives in situations such as trade negotiations. The trade aspect drove me to be specific on the focus question that need to address the impacts of Pequot War to Europeans and Natives. In this case, the contact of both had profound effect where balance of power shifted overnight from natives to Europeans. My choice is therefore grounded on the enthusiasm to discover more knowledge into this particular aspect.
Step 3: List the two primary source and two secondary sources that you have chosen in the boxes below.
Source Type
Source Name
Primary Source #1
Indian Complaints about English Settlers, 1675
Primary Source #2
Edward Randolph’s Report of King Philip’s War, 1675
Secondary Source #1
Adam J. Hirsch, “The Collision of Military Cultures in Seventeenth-Century New England.”
Secondary Source #2
Michal L. Fickes, “’They Could Not Endure that Yoke’: The Capitivity of Pequot Women and Children after the War of 1637”
Step 4: In 50 words or more, describe your initial thoughts about how your sources relate to your chosen topic and focus. Make sure to provide specific examples from each of the four sources that illustrate how they will help you answer your focus question. This will help you begin to think about the form of your paper!
In primary #1 the natives who were the Indians, revolted against the Europeans led by King Phillip which meant the next combinations of Indians to threaten European dominance after
Pequot War
. Primary #2 contribute to this research since
Randolph, sent by King James II, compiled a report to account for the war involving Indians and colonies led by King Phillip.
On the other hand, secondary #1 is relevant to this paper since it analyze military conflicts in 17th-century, warfare practice in Europe; facets of native warfare of Indians and differences between European and native military prowess. Finally, Secondary #2 inputs to my compilation as it addresses how natives of New England were enslaved as it document how Europeans eventually thought of
Pequot War
as the “civilized” English versus the “savage” natives. The colonialists killed and enslaved Pequot women and children.
Topic instructions:
.
Information and Knowledge Needs of Nurses in the 21st CenturyIn th.docx
Information and Knowledge Needs of Nurses in the 21st Century
In the year 2025, nursing practice enabled by technology has created a professional culture of reflection, critical inquiry, and inter-professional collaboration. Examples of current technology that could change in the future include:
Nurses use technology at the point of care in all clinical settings (e.g., primary care, acute care, community, and long-term care) to inform their clinical decisions and effect the best possible outcomes for their clients.
Information is gathered and retrieved via human–technology biometric interfaces including voice, visual, sensory, gustatory, and auditory interfaces, continuously monitoring physiologic parameters for potentially harmful imbalances.
Longitudinal records are maintained for all citizens from their initial prenatal assessment to death; all life-long records are aggregated into the knowledge bases of expert systems. These systems are providing the basis of the artificial intelligence being embedded in emerging technologies.
Smart technologies and invisible computing are ubiquitous in all sectors where care is delivered.
Clients and families are empowered to review and contribute actively to their record of health and wellness.
Invasive diagnostic techniques are obsolete, nanotechnology therapeutics are the norm, and robotics supplement or replace much of the traditional work of all health professions.
Nurses provide expertise to citizens to help them effectively manage their health and wellness life plans, and navigate access to appropriate information and services.
Scholarly writing includes clarity and flow of thoughts. You may want to include headings in your paper to ensure you are meeting all elements of the rubric.
Rubric
APA Paper
APA Paper
Criteria
Ratings
Pts
Choose at least two of the technology enabled changes listed above and discuss clinical practice workflow impacts comparing current technology and the new technology.
10
pts
Based on the two technology enabled changes you chose, reflect on these advances and looking to the future, how do you envision nursing care will change?
5
pts
Find a current scholarly article that discusses nursing job satisfaction and the factors that influence such. Discuss the potential impacts on job satisfaction of the technologies outlined in the case scenario.
10
pts
Identify at least 3 ways that nurses could use the new technologies to partner with patients to manage their health.
10
pts
APA and Grammar- Title page/Running head- Body of paper/Header/Title: appropriate flow, syntax and context/3-5 pages- In-text citations- References-
10
pts
Total Points:
45
.
Infectious and Noninfectious Prevention and Control TechniquesIn.docx
This document provides instructions for an assignment comparing and contrasting the prevention and control techniques for an infectious disease and a non-infectious disease. Students are to select one of each, research the signs, symptoms, transmission, diagnosis, treatment, and methods of prevention and control. They will then submit a one-page review of each disease comparing the public health impact and prevention methods. Sources must be cited using APA format. The assignment will be graded based on inclusion of details, description of prevention and treatment, justification using references, and correct spelling and grammar.
Information Management and Software Development Please respo.docx
"
Information Management and Software Development
"
Please respond to the following:
According to your point of view, which of the defined criteria of measurement is considered as most important for evaluation and monitoring of information systems? How does computer-aided software engineering (CASE) aid in analyzing and evaluating characteristics of a project?
Discuss how
IT is impacting the business processes and applications of e-Business? How does the system development life cycle (SDLC) assist in accomplishing essential tasks and objectives of an organization?
.
Information Security Please respond to the followingIdentify t.docx
"Information Security" Please respond to the following:
Identify two events you believe are important to progression of Information Security. Research the events and develop a PowerPoint presentation to provide the class. You should find research from Online to support the events you believe are significant to the development of Information Security.
.
Information PaperThe Chief of Staff is preparing preliminary studi.docx
Information Paper
The Chief of Staff is preparing preliminary studies for the DHS secretary. He has directed you to prepare an information paper that identifies possible mission areas or responsibility overlaps within the Department of Homeland Security (DHS) operating agencies and to provide recommendations for possible consolidation. You are required to conduct library research to locate scholarly studies on the topic.
.
INF 410 week 4 assign onAssume you are the project manager for a s.docx
INF 410 week 4 assign on
Assume you are the project manager for a software company and your team is in charge of delivering an update to tax preparation software for the next tax season. The project team has ten software developers working together, but located across the country. You have the following information about the project, and need to provide a status to the sponsors.
New items you learned this month about the project:
There is a three day weekend in the coming month.
Nine of the developers are on track to finish their tasks two weeks early.
One software developer took the recently announced “early retirement” package, and is leaving in one week. He is confident he will be able to finish his piece of the work before he leaves.
It is hurricane season in Florida, where three of the developers are located.
The developer who is retiring is the only person who knows how to get approval for the final product from the IRS.
The project costs are under budget and there has been no need for overtime.
Write a one page status report (excluding the title page) to the sponsors providing a clear indication of status of the project (suggestion below into their assignment.
Green
Yellow
Red
The sponsors also like to only know the two most important risks, and what could be done to mitigate the risk if it happens. The conclusion of the status report should include a paragraph that describes any requests for additional resources, if they are necessary.
.
Information Technology in Public HealthPublic health surveillance .docx
Information Technology in Public Health
Public health surveillance and prevention efforts in the U.S. reflect the involvement of numerous health care providers and organizations. Government agencies such as the CDC often function as a hub for the collection, coordination, and communication of public health-related data.
Common applications of public health IT to promote and improve the health of populations include (but are not limited to) biosurveillance, disease registries, and immunization tracking. The timely and appropriate implementation of these applications can have a significant impact on the ability of providers to deliver health care to the their patients, which, in turn, can have a profound effect on a community's overall state of health and wellness. Consider the dire impact a SARS outbreak might have, for example, if patient diagnoses were not reported and shared regionally, nationally, and internationally.
Prepare for this Application as follows:
Conduct a literature review of a specific application of health information technology in public health and locate an example in which the application was used to address a public health-related concern. (You might wish to begin by researching a particular surveillance program, disease outbreak, disease registry, prevention program, or other public health-related event, and then identify the technology involved in this activity.)
Find out how this application has impacted the public's health. Learn also about any ways in which health care providers and organizations were involved in the use of this information technology.
Then write a 2- to 3-page paper that addresses the following:
Describe the specific application you selected and the ways in which it addresses a public health-related concern. Summarize the potential benefits to the public, as well as any possible drawbacks, arising from the use of this application.
Explain the role of hospitals and other health care organizations in contributing to or making use of this public health-related IT application.
Discuss other implications of this application for health care providers and organizations. How has it impacted (or might it impact) clinical or administrative practices in hospitals or other health care institutions? Provide a rationale for your response.
.
Information System and Enterprise SystemsIdentify the key factors.docx
Information System and Enterprise Systems"
Identify the key factors that companies should consider when deciding whether to buy or to build their own information systems. Explain your rationale.
Select one (1) type of the four (4) enterprise systems (i.e., supply chain management, customer relationship management, knowledge management systems, and enterprise resource planning), and speculate on the main issues that companies may encounter when implementing the type of enterprise system that you have selected. Next, suggest two or three (2 or 3) general techniques that companies could use in order to mitigate the issues in question.
50 + word answer
.
Individuals react to a variety of social cues to construct their per.docx
Individuals react to a variety of social cues to construct their personal realities. These cues include social categorization. Are social categories a valid basis for the construction of personal reality? Why or why not? How might the misinterpretation of social categorization cues lead to errant self-categorization and falsely shape the personal reality of the individual?
Note: Just need 150 - 200 words explaining the personal relaity of an individual
.
Information Technology and Decision MakingPatient safety and care .docx
Information Technology and Decision Making
Patient safety and care is reliant upon the quality of nurses' daily decision making. Nurses are constantly tending to the needs of multiple patients by providing health care information, administering drug treatments, managing patient family concerns, as well as informing other nurses and staff on the patient's condition.
Review your reading from this week and then address the following:
• Explain how well your current work setting supports you and your colleagues in decision making.
• Share your thoughts on two ways that electronic or computerized information technology could help you and your nursing colleagues improve decision making in your work setting. You can include decision support applications or not, as you wish.
Support your ideas or those of others with references from the professional nursing literature.
Cite the references used in APA style format.
.
Individuals use social movements when they feel a social institution.docx
Individuals use social movements when they feel a social institution is unjust. Current theoretical perspectives on social movements provide an awareness of the nature of social movements and their role in defining human behavior. In terms of human services, it is important to be able to recognize and assess the costs and benefits to individuals who participate in social movement activities (for example, healthcare reform, charity organizations, and disability movements) as well as the effects of social movements on human behavior.
Tasks:
Using the vignette provided in this module, your textbook, the Argosy University online library resources, and the Internet, conduct research to support your response.
In a 3- to 4-page essay, address the following:
Provide a summary of the vignette's key points as related to the social movements it represents. Identify and describe the concepts from this module that can be applied to the vignette to describe human behavior (i.e., cultural framing).
Identify and discuss the effects of the identified social movement on the individual described in the vignette.
Provide a summary of service methods or options that could be used to support this person. You can use examples you have identified in your own community as well.
Submission Details:
By
Wednesday, October 14, 2015
, prepare a 3- to 4-page essay. Your response should rely upon at least three sources from professional literature. This may include the Argosy University online library resources, relevant textbooks, peer-reviewed journal articles, and websites created by professional organizations, agencies, or institutions (.edu, .org, or .gov). Write in a clear, concise, and organized manner; demonstrate ethical scholarship in accurate representation and attribution of sources (i.e., APA format); and use accurate spelling, grammar, and punctuation.
.
Industry Averages and Financial Ratios PaperCalculate the 14 rat.docx
Industry Averages and Financial Ratios Paper
Calculate
the 14 ratios (show your calculations) for the company using the two most recent annual financial statements found on the financial information website you used earlier. Be careful not to use quarterly information, and include ratios for both years.
.
Information is provided for you below that will help you construct a.docx
Information is provided for you below that will help you construct an answer for your interpretation of the figures on page 2-3.
Background:
Dendrobates pumilo
is a poison dart frog with a distributional range from Nicaragua, Costa Rica, and Panama. The bright colors from the skin of these frogs are considered to be a warning sign of toxicity to predators. Although
D. pumilo
is one species, there are 10 color polymorphic populations within this range. The warning signs as displayed on
D. pumilo
are favored by natural selection in terms of predator avoidance.
Purpose of the study (what scientists wanted to understand):
1) How visual conspicuousness and toxicity is correlated.
2) Differences between visual backgrounds and predator visual systems on detection of
D.
pumilo
.
Glossary:
Dorsal
: upper side or back
Ventral
: underside
1
Visual background
: Poison dart frogs live on different natural substrates; live dead plant parts,
so this would bring about different visual backgrounds.
Visual systems
: In this study they are referring to how predators “view” D. pumilo. Remember, not all predators will see their prey the same way.
Color polymorphisms
:
alternative phenotypes, and in this case alternative phenotypes of frog skin color.
NAME: ______________________
Figure 1.
Sampled populations of
Dendrobates pumilio
in the Bocas del Toro Archipelago, Panama. From Isla Bastimentos, two
D. pumilio
color morphs were collected (green and orange), as well as four individuals of the closely related but nontoxic control species
Allobates talamancae
.
Bio 112 Olave Spring 2016
2
Figure 2.
Toxicity scores and coloration brightness in
Dendrobates pumilio
.
A
, Open bars indicate
toxicity scores with standard errors. Different letters above the bars indicate statistically significant differences; numbers are population numbers referred to in
C
and in subsequent figures.
Allobates talamancae
(a closely related Dendrobatid frog) and saline solution served as toxicity measure controls.
B
, Gray bars indicate the overall brightness of dorsal coloration (total reflectance flux, S
R
, in arbitrary units) for the 11 frog taxa.
C
, The inset gives the correlation between toxicity and dorsal brightness for the 10
D. pumilio
populations. Numbers refer to the population labels in
A
.
Bio 112 Olave Spring 2016
3
NAME: ______________________
Figure 3.
Illustration of the perceptual differences between potential predator taxa in species-specific color space. Plots show the estimated brightness and color contrast generated by the dorsal coloration of individuals from three
Dendrobates pumilio
populations (Solarte [orange], Aguacate [blue], and Pastores [green]), viewed against a
Heliconia
background, in the visual systems of birds, crabs, and diurnal snakes. Each dot represents reflectance spectra measured from an individual frog. The relative conspicuousness of the different frog morphs differs by viewer. For exa.
Individuals who are frequent voters share common characteristics, re.docx
Individuals who are frequent voters share common characteristics, regardless of the nation in which they may reside. Identify and describe at least three of these common characteristics. Explain why each characteristic is influential in motivating a person to vote.
Your response should be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.
.
Infectious diseases come with extremely tough challenges to mitigate.docx
Infectious diseases come with extremely tough challenges to mitigate them and then finally get them under control. Bringing any such infectious disease under control involves a lot of decisions and cooperation between various branches of government and the health services.
Using the Internet, choose an infectious disease that was prevalent in the United States and had lasting consequences or select a disease (
Yellow Fever is the chosen disease)
Based on your research and understanding, create a 3 to 4-page report in a Microsoft Word document that includes the following:
A brief description of your chosen infectious disease along with your reasons for choosing the disease.
Information on the work conducted by government departments to mitigate the impact of your chosen infectious disease.
Investigations, research studies, and other surveillance data analyses regarding your chosen infectious disease.
Instances of the emergence and re-emergence of your chosen disease.
A brief summary of the government's findings and investigations about your chosen disease.
Past, current, and ongoing research pertaining to your chosen disease.
Support your writing with relevant facts or figures and indicate your current knowledge of the infectious disease.
Support your responses with examples.
Cite any sources in APA format.
.
Individual Reflection in which you describe the plan that you would .docx
Individual Reflection in which you describe the plan that you would like to implement, including:
Your list of the stakeholders whose approval/support will be necessary for your success. Take the time to ensure your list of stakeholders is as complete as possible.
Considering the various stakeholder perspectives, identify what is important to each of the stakeholders on your list.
Your assessment of the risks to your plan and impact of stakeholders with different goals and interests. Explain how you might manage the impact and address any risks that emerge.
The specific details of the strategy, or strategies, you will use to align stakeholder interests in your plan, with your rationale as to why you think these will be successful based on your analysis of stakeholder perceptions and interests. (
Hint:
Strategies can include team-building exercises, conflict resolution methods, partnering, change management, best practices, etc. You will need to provide details to support your selected strategy or strategies.)
.
Individual ProjectGroups in the WorkplaceSun, 10816.docx
Individual Project
Groups in the Workplace
Sun, 1/08/16
3-6 paragraphs
Assignment Objectives
Explain the effect of diversity on group performance
Assignment Description
You are preparing to write an article for a professional magazine regarding the value of diversity in teams. Diversity can include any of the following:
Gender
Age
National origin
Race
Sexual orientation
Marital status
Parental status
Height
Weight
Profession
Education
Geographic location of residence
Financial status
Artistic endeavors
Research the subject using the library and Internet, and prepare an outline or a draft of the article you are to write.
.
Individual ProjectRecruitment Strategies and Tools Mon, 83.docx
Individual Project
Recruitment Strategies and Tools
Mon
, 8/3/15
Numeric
3-4 paragraphs
Assignment Objectives
Describe validity and reliability with regard to personnel selection tools
Assignment Details
Complete the following for this assignment:
Research different types of prescreening tests, and construct a report for the president of the company.
Discuss the validity and reliability of each test.
Recommend which tests should be used in your company's selection process.
Use the library, Internet, and other resources to research your response.
.
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In this assignment, you will implement a generic map interface in tw.docx
- 1. In this assignment, you will implement a generic map interface in two ways: as a hash table with another map implementation from the activity (attached) If you prefer, you may implement and test maps of Strings (sample code in the right column below). You should use normal Java arrays for storage, not ArrayList or other classes from the Java Collections API. Your submission should be a zip file that includes the following files: IMap.java (below, no changes needed) IMapTest.java, HashMapTest.java, and OtherMapTest.java (below, no changes needed) use the first column for Generic version, second column for String version HashMap.java (your hash table implementation) (Here is the main task) OtherMap.java (your other implementation) (Here is the main task) Sample Code for Generics Sample Code for Strings (not Generic) interface IMap { boolean del (int key); // delete key & its value T get (int key); // get value for key boolean put (int key, T val); // put key,value in map boolean hasKey(int key); // is key in map? boolean hasVal(T val); // is val in map? void clear (); // remove all keys & values String dump (); // return String with contents int size (); // return # of pairs } interface IMap { boolean del (int key); // delete key & its value String get (int key); // get value for key
- 2. boolean put (int key, String val); // put key,value in map boolean hasKey(int key); // is key in map? boolean hasVal(String val); // is val in map? void clear (); // remove all keys & values String dump (); // return String with contents int size (); // return # of pairs } import static org.junit.Assert.*; import org.junit.*; public abstract class IMapTest { protected IMap map; // each subclass should initialize map and then call super.before() public void before() { assertNotNull(this.map); this.map.put(1,"one"); } @After public void after() { this.map = null; } @Test public void constructor() { assertNotNull(this.map); } @Test public void clear() { assertEquals(1, this.map.size()); this.map.clear(); assertEquals(0, this.map.size()); } @Test public void del() { assertEquals(1, this.map.size()); assertFalse ( this.map.del(0));
- 3. assertTrue ( this.map.del(1)); assertFalse ( this.map.del(1)); assertEquals(0, this.map.size()); } @Test public void get() { assertNull ( this.map.get(0)); assertEquals("one", this.map.get(1)); } @Test public void has() { assertTrue (this.map.hasKey(1)); assertTrue (this.map.hasVal("one")); assertFalse(this.map.hasKey(3)); assertFalse(this.map.hasVal("three")); assertTrue (this.map.put(3,"three")); assertTrue (this.map.hasKey(3)); assertTrue (this.map.hasVal("three")); } @Test public void put() { assertEquals(1, this.map.size()); assertFalse ( this.map.put(1,"one")); assertTrue ( this.map.put(3,"three")); assertFalse ( this.map.put(3,"three")); assertEquals(2, this.map.size()); } } import static org.junit.Assert.*; import org.junit.*; public abstract class IMapTest { protected IMap map; // each subclass should initialize map and then call super.before() public void before() {
- 4. assertNotNull(this.map); this.map.put(1,"one"); } @After public void after() { this.map = null; } @Test public void constructor() { assertNotNull(this.map); } @Test public void clear() { assertEquals(1, this.map.size()); this.map.clear(); assertEquals(0, this.map.size()); } @Test public void del() { assertEquals(1, this.map.size()); assertFalse ( this.map.del(0)); assertTrue ( this.map.del(1)); assertFalse ( this.map.del(1)); assertEquals(0, this.map.size()); } @Test public void get() { assertNull ( this.map.get(0)); assertEquals("one", this.map.get(1)); } @Test public void has() { assertTrue (this.map.hasKey(1)); assertTrue (this.map.hasVal("one"));
- 5. assertFalse(this.map.hasKey(3)); assertFalse(this.map.hasVal("three")); assertTrue (this.map.put(3,"three")); assertTrue (this.map.hasKey(3)); assertTrue (this.map.hasVal("three")); } @Test public void put() { assertEquals(1, this.map.size()); assertFalse ( this.map.put(1,"one")); assertTrue ( this.map.put(3,"three")); assertFalse ( this.map.put(3,"three")); assertEquals(2, this.map.size()); } } import static org.junit.Assert.*; import org.junit.*; public class HashMapTest extends IMapTest { @Before public void before() { this.map = new HashMap(10); super.before(); } } import static org.junit.Assert.*; import org.junit.*; public class HashMapTest extends IMapTest { @Before public void before() { this.map = new HashMap(10); super.before(); } }
- 6. import static org.junit.Assert.*; import org.junit.*; public class OtherMapTest extends IMapTest { @Before public void before() { this.map = new OtherMap(10); super.before(); } } import static org.junit.Assert.*; import org.junit.*; public class OtherMapTest extends IMapTest { @Before public void before() { this.map = new OtherMap(10); super.before(); } }