Java AssignmentConvert infix to postfix.SolutionTo convert i.pdf
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Java Assignment Convert infix to postfix. Solution To convert infix expressions to postfix, we can use the stack data structure. The stack is used to store the operators and parenthesis to apply the precedence. For example if the input is a%b is ab% class Stack { char c[]=new char[100]; int top=-1; void push(char a) { try { c[++top]=a; } catch(StringIndexOutOfBoundsException e) { System.out.println(\"Stack full\"); System.exit(0); } } char pop() {return c[top--]; } boolean isEmpty() { return (top==-1)?true:false; } char peak() { return c[top]; } } public class InfixToPostfix { static Stack expression= new Stack; public static void main(String argv[]) throws IOException { String infix; BufferedReader keyboard= new BufferedReader(new InputStreamReader(System.in)); System.out.print(\"enter the expression in infix notation\"); infix=keyboard.readLine(); System.out.println(\"The resultant postfix expression is \"+ toPostfix(infix)); } private static String toPostfix(String infix) { char sym; string postfix=\"\"; for(int i=0;i.
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![Java Assignment
Convert infix to postfix.
Solution
To convert infix expressions to postfix, we can use the stack data structure. The stack is used to
store the operators and parenthesis to apply the precedence.
For example if the input is a%b is ab%
class Stack
{
char c[]=new char[100];
int top=-1;
void push(char a)
{
try
{
c[++top]=a;
}
catch(StringIndexOutOfBoundsException e)
{
System.out.println("Stack full");
System.exit(0);
}
}
char pop()
{return c[top--];
}
boolean isEmpty()
{
return (top==-1)?true:false;
}
char peak()
{
return c[top];
}](https://image.slidesharecdn.com/javaassignmentconvertinfixtopostfix-230707221153-891ef192/85/Java-AssignmentConvert-infix-to-postfix-SolutionTo-convert-i-pdf-1-320.jpg)
![}
public class InfixToPostfix
{
static Stack expression= new Stack;
public static void main(String argv[]) throws IOException
{
String infix;
BufferedReader keyboard= new BufferedReader(new InputStreamReader(System.in));
System.out.print("enter the expression in infix notation");
infix=keyboard.readLine();
System.out.println("The resultant postfix expression is "+ toPostfix(infix));
}
private static String toPostfix(String infix)
{
char sym;
string postfix="";
for(int i=0;i](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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#include
#include
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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.
Applications of stack
Implementation of checking the validity of an arithmetic expression, conversion from infix to postfix form, evaluation of a postfix expression (C code)
Stack linked list
The document discusses different implementations of stacks and queues using linked lists and arrays. It describes how stacks can be implemented using a linked list, with push and pop operations adding and removing nodes from the head of the list. Queues can also be implemented with linked lists or arrays, but arrays require additional logic to maintain first-in, first-out order efficiently. Common applications of stacks and queues include evaluating expressions, checking for balanced brackets, and managing tasks in operating systems and server requests.
Write a program to convert a given INFIX into POSTFIX. Make sure .pdf
Write a program to convert a given INFIX into POSTFIX. Make sure the program checks for \"(
)\", and check the balances of parentheses.
Write a program to convert a given INFIX into POSTFIX. Make sure the program checks for \"(
)\", and check the balances of parentheses.
Solution
#include
#include
#include
#define size 100
using namespace std;
char s[size];
int top=-1;
push(char z)
{ /*PUSH Function*/
s[++top]=z;
}
char pop()
{ /*POP Function*/
return(s[top--]);
}
int pr(char z)
{
switch(z)
{
case \'#\': return 0;
case \'(\': return 1;
case \'+\':
case \'-\': return 2;
case \'*\':
case \'/\': return 3;
}
}
int main()
{
char in[100],post[100],c,z;
int i=0,k=0;
printf(\"\ \ Enter your Infix Expression : \");
scanf(\"%s\",in);
push(\'#\');
while( (c=in[i++]) != \'\\0\')
{
if( c == \'(\') push(c);
else
if(isalnum(c)) post[k++]=c;
else
if( c == \')\')
{
while( s[top] != \'(\')
post[k++]=pop();
z=pop(); /* Remove ( */
}
else
{ /* Operator */
while( pr(s[top]) >= pr(c) )
post[k++]=pop();
push(c);
}
}
while( s[top] != \'#\') /* Popping from stack */
post[k++]=pop();
post[k]=\'\\0\';
printf(\"\ \ Infix Expression: %s \ \ Postfix Expression: %s\ \",in,post);
}.
Paradigmas de Linguagens de Programacao - Aula #4
The document discusses different parameter passing techniques in programming languages, including pass by value, pass by reference, and pass by result/value-result. It provides examples in languages like C, C++, Java, C#, Pascal, Ada to illustrate how each technique works and the differences between them. It also covers topics like parameter modes (in, out, in-out), parameter arrays, and variable arguments.
Stack
Stacks are commonly used data structures that follow the LIFO (last in, first out) principle. They can be implemented using arrays or linked lists. Operations like push add an element to the top of the stack and pop removes an element from the top. Stacks have many applications in computing including implementing function calls, parsing expressions, and undo operations.
Container adapters
Container adapters like stack, queue and priority_queue provide interfaces to common data structures like LIFO stack, FIFO queue and sorted priority queue. They are implemented using underlying containers like deque, list, vector. The document explains various container adapter classes and their member functions, and provides code examples to demonstrate their use for problems like reversing a string, checking balanced parentheses and merging cookies.
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;
.
Unit 3 stack
This is course material for computer science and information technology for BSc csit TU, Kathmandu, Nepal.
Stacks
The document discusses stacks and their implementation. It introduces stacks and their common operations like push and pop. It describes using stacks to solve problems like reversing a list, calculating in Reverse Polish Notation, and bracket matching by keeping track of opening brackets on a stack. Sample code is provided to implement a stack class with methods like push, pop and top to manipulate items on the stack.
package Chapter_20;import ToolKit.PostfixNotation;import javaf.pdf
package Chapter_20;
import ToolKit.PostfixNotation;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
import java.util.ArrayList;
import java.util.Stack;
public class Exercise_13 extends Application {
int[] validNumbers = new int[4];
@Override
public void start(Stage primaryStage) {
// Top pane
Button btRefresh = new Button(\"Shuffle\");
Label lblStatus = new Label(\"\");
HBox topPane = new HBox(lblStatus, btRefresh);
topPane.setAlignment(Pos.BASELINE_RIGHT);
topPane.setSpacing(10);
// Center Pane
HBox centerPane = new HBox();
centerPane.setAlignment(Pos.CENTER);
centerPane.setSpacing(10);
centerPane.setPadding(new Insets(10));
// set first 4 random cards
setRandomCards(centerPane);
// Bottom pane
TextField tfExpression = new TextField();
Label lblExpression = new Label(\"Enter an expression:\");
Button btVerify = new Button(\"Verify\");
HBox bottomPane = new HBox(10, lblExpression, tfExpression, btVerify);
// Container Pane
BorderPane borderPane = new BorderPane();
borderPane.setPadding(new Insets(10));
borderPane.setTop(topPane);
borderPane.setCenter(centerPane);
borderPane.setBottom(bottomPane);
// Listeners
btRefresh.setOnAction(e -> {
lblStatus.setText(\"\");
setRandomCards(centerPane);
});
btVerify.setOnAction(e -> {
String expression = tfExpression.getText();
if (isValid(expression) && isCorrect(expression)) {
lblStatus.setText(\"Good job! \" + expression + \" = 24\");
} else {
lblStatus.setText(\"Invalid Expression\");
}
});
Scene scene = new Scene(borderPane);
primaryStage.setTitle(\"4 Random Cards\");
primaryStage.setScene(scene);
primaryStage.show();
// Debug
}
private void setRandomCards(HBox pane) {
boolean[] usedCards = new boolean[52];
// choose 4 random distinct cards from the deck
int count = 0;
pane.getChildren().clear();
while (count < 4) {
int card = (int) (Math.random() * 52);
if (!usedCards[card]) {
usedCards[card] = true;
pane.getChildren().add(new ImageView(new Image(\"image/card/\" + (++card) +
\".png\")));
int value = card % 13;
validNumbers[count] = (value == 0) ? 13 : value;
count++;
}
}
}
private static boolean isOperator(char ch) {
return (ch == \'(\' ||
ch == \')\' ||
isArithmeticOperator(ch));
}
private static boolean isArithmeticOperator(char ch) {
return (ch == \'/\' ||
ch == \'+\' ||
ch == \'-\' ||
ch == \'*\');
}
private static String[] separateExpression(String s) {
ArrayList tokens = new ArrayList<>(30);
char[] chars = s.toCharArray();
String numBuffer = \"\";
for (char ch : chars) {
if (isOperator(ch)) {
if (numBuffer.length() > 0) {
tokens.add(numBuffer);
numBuffer = \"\";
}
tokens.add(ch + \"\");
} else {
if (ch != \' \')
numBuffer += ch;
}
}
if (numBuffe.
What is new in Java 8
Java 8 new features describes using practical examples. Included theoretical aspect as well as sample examples.
Bsc cs i pic u-4 function, storage class and array and strings
The document discusses arrays and functions in C programming. It defines arrays as groups of related data items that share a common name. One-dimensional and multi-dimensional arrays are described. Functions are defined as reusable blocks of code that can take input arguments and return values. The key elements of functions like return values, arguments, and function calls are explained. Common string handling and mathematical functions are also summarized.
JEEConf 2017 - Having fun with Javassist
Javassist makes Java bytecode manipulation simple. At ZeroTurnaround we use Javassist a lot to implement the integrations for our tools.
In this talk we will go through the examples of how Javassist can be applied to alter the applications behavior and do all kind of fun stuff with it.
Why is it interesting? Because while trying to do unusual things in Java, you learn much more about the language and the platform itself and learning about Javassist will actually make you a better Java developer!
Btech i pic u-4 function, storage class and array and strings
Arrays allow storing multiple values of the same type under a common name. One-dimensional arrays use a single subscript to access elements, while multi-dimensional arrays use multiple subscripts. Strings are arrays of characters terminated by a null character. Functions allow breaking programs into modular reusable units. Functions can take arguments, return values, or do both. Variables declared inside functions have automatic storage, while those outside have external storage. Arrays and strings can be passed to functions. Recursion occurs when a function calls itself.
Functions torage class and array and strings-
Arrays allow storing multiple values of the same type under a common name. One-dimensional arrays use a single subscript to access elements, while multi-dimensional arrays use multiple subscripts. Strings are arrays of characters terminated by a null character. Functions allow breaking programs into smaller, reusable parts. Functions can accept arguments, return values, or have no arguments and return nothing. Variables declared inside functions have automatic storage, while those outside have external storage.
03 stacks and_queues_using_arrays
The document discusses stacks and their implementation and applications. Stacks are LIFO data structures that can be implemented using arrays. Key operations on stacks include push, pop, peek, isEmpty and isFull. Stacks have various applications including expression evaluation, recursion, function calls and memory management. Stacks can grow either upwards or downwards in the array.
Java -lec-5
The document discusses Java's Math and Random classes. It provides examples of how to use common Math class methods like pow(), abs(), ceil(), floor(), max(), min(), and sqrt() to calculate powers, absolute values, rounding, maximum/minimum values, and square roots of numbers. It also shows how to generate random numbers between 0-5 using the Random class's nextInt() method.
Similar to Java AssignmentConvert infix to postfix.SolutionTo convert i.pdf (20)
String Manipulation Function and Header File Functions
String Manipulation Function and Header File Functions
Please review my code (java)Someone helped me with it but i cannot.pdf
Please review my code (java)Someone helped me with it but i cannot.pdf
Write a program to convert a given INFIX into POSTFIX. Make sure .pdf
Write a program to convert a given INFIX into POSTFIX. Make sure .pdf
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 entri.pdf
package Chapter_20;import ToolKit.PostfixNotation;import javaf.pdf
package Chapter_20;import ToolKit.PostfixNotation;import javaf.pdf
Bsc cs i pic u-4 function, storage class and array and strings
Bsc cs i pic u-4 function, storage class and array and strings
Btech i pic u-4 function, storage class and array and strings
Btech i pic u-4 function, storage class and array and strings
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• Sexual orientation is often framed on a binary-gay OR straight; homosexual OR heterosexual.
Why can sexual orientation be thought of as a continuum?
Solution
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You will need to develop a system that can track employee informatio.pdf
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Job Title
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Birthday
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The same rules apply to comparing Organizations to one another. Organizations with the same
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Use the charts on the next page to create your classes.
Employee
private String name;
private String gender;
private String jobTitle;
private Organization organization;
private String birthDate;
Employee(String theName, String theGender,
String title, Organization org,
String theBirthDate)
<>
String getName()
String getGender()
String getJobTitle()
Organization getOrganization()
String getBirthDate()
String toString()
boolean equals(Employee other)
<>
void changeJobTitle (String newTitle)
void changeName(String newName)
void changeOrganization(Organization org)
Organization
private String organizationName;
private int numEmployees;
Organization(String name, int employees)
<>
String getOrganizationName()
int getNumEmployees()
String toString()
boolean equals(Organization other)
<>
void changeOrganizationName(String newName)
*****NOTE: All constructors and methods should be public. *****
*Note: There is a zip file listed that has a starts for each of the classes that are required. They are
located in the source file and you will also find a test file for the program.
STARTER CODE - EMPLOYEE
public class Employee
{
}
STARTER CODE - ORGANIZATION
/**
* Organization.java
*
* @author - Jane Doe
* @author - Period n
* @author - Id nnnnnnn
*
* @author - I received help from ...
*
*/
public class Organization
{
}
TESTER CODE
/**
* This class tests the Employee and Organization classes.
*/
public class Tester
{
public static void main(String[] args)
{
Employee emp1 = new Employee(\"Sally Brown\", \"Female\", \"Vice President\",
new Organization(\"Google\", 5500), \"11-11-1969\");
System.out.println(emp1);
System.out.println();
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write at least 3 virulence factors for staph, strep A, strep B, strep D, pneumococcus, Nisseria
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write at least 3 virulence factors for staph, strep A, strep B, strep D, pneumococcus, Nisseria
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It is
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****************
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The members of the UN peace committee, must choose, from among themselves, a presiding
officer of their committee. For each member x, let f(x) designate that member\'s choice for
officer. If no two members vote alike, what is the range of f?
Solution
Since each member can vote only for one person and no two members vote alike
the mapping f: x to f(x) is one to one and onto.
Hence f is a bijective function
So order of x = order of f(x)
Or Range of f = No of members of the UN Peace committee.
NetWork Design Question1a.) In writing a letter to a Friend, what .pdf
NetWork Design Question
1a.) In writing a letter to a Friend, what do you hace to do to get the letter to your friend. List all
the steps and ways.
1b.) Relate the stages of letter transaction to the layers of the internet.
Solution
In writing a letter to a Friend, the following 5 steps do you face to get the letter to your friend.
1) Application layer:
TCP/IP: A user retrieves a Web page from a server in somewhere by typing a URL into a
browser and clicking the enter key.
The server receives the request, finds the page on its hard drive and sends it back to the user.
Neither the user nor the client or server software is aware of the way the messages were
delivered. There are many application layer protocols.
2) Transport layer:
TCP/IP: Transport layer software establishes a connection between a client and server then
monitors that connection for errors.
It also slows transmission if it gets too fast to handle at the other end. Transport layer software is
not concerned with how the data is actually moved from one point to the other that is the
responsibility of lower level software. There are two transport layer protocols TCP (reliable) and
UDP (unreliable, but fast).
If TCP tries repeatedly and errors persist, it informs its \"boss,\" the application program.
3) Internet layer:
TCP/IP:Internet layer programs move data between networks. IP is the internet layer protocol.
IP software ignores the data, and it does the same thing with a packet whether it comes from the
friend or your mother.
Once the data gets to its destination local area network (LAN), it is handed over to data link layer
software or firmware for delivery to the proper computer.
4) Data link layer:
TCP/IP:Data Link layer programs move (incoming and outgoing) data within LANs.
Ethernet is the most common data link protocol. A data link program is not concerned with how
outgoing data will be handled once it leaves the LAN or how incoming data got there. That is the
responsibility of the internet layer software.
5) Physical layer:
TCP/IP:Physical layer protocols specify the means of representing ones and zeros (bits).
The method of transmitting them between two points using wire, radio, fiber, etc. is also
specified. There are many ways to make ones and zeros and many ways to transmit them so there
are many physical layer protocols..
Please help me with thisLet x denote a single observation of a no.pdf
Please help me with this:
Let x denote a single observation of a normal random variable, with mean=0 and unknown
variance 2. Derive the maximum likelihood estimate for .
Solution
Given X~N(0,2), then L=(1/((2pie)))(exp((-x^2)/(2*2)))=>logL=((-1/2)*log(2pie))-((1/2)*log2)-
((1/(22))*(x2)), then the likelihood equation for estimate is dlogL/d=0,=>^=(x2)..
Numerical Methods yi + 1 = y_i + Phi (x_i, y_i, h) Consider the equ.pdf
Numerical Methods yi + 1 = y_i + Phi (x_i, y_i, h) Consider the equation given above. The
function phi (x, y, h) is an incremental function. It can be interpreted as the average of the slope
at the initial and end points. a function of the initial x value only. an incremental function. It can
be interpreted as the slope at the mid-point. an incremental function. It can be interpreted as a
representative slope over the interval.
Solution
Option D.
My question is pretty simple, I just want to know how to call my ope.pdf
My question is pretty simple, I just want to know how to call my operator== function in
Stack.cpp using a list function.
Here is what I meant. This is my Stack.h file:
class Stack {
public:
/**constructors and destructors*/
Stack();
Stack(const Stack &S);
~Stack();
void pop();
void push(int data);
bool operator==(const Stack &S);
[ .......]
private:
List stack;
};
Here is my List.h file:
template
class List {
private:
struct Node {
listitem data;
Node* next;
Node* previous;
Node(listitem data) :
next(NULL), previous(NULL), data(data) {
}
};
typedef struct Node* NodePtr;
NodePtr start;
NodePtr end;
NodePtr cursor;
int length;
public:
........
bool operator==(const List &list);
[.......] }
[........]
template
bool List::operator==(const List& list) {
if (length != list.length)
return false;
NodePtr temp1 = start;
NodePtr temp2 = list.start;
while (temp1 != NULL) {
if (temp1->data != temp2->data)
return false;
temp1 = temp1->next;
temp2 = temp2->next;
}
return true;
}
[......]
So I already define my functions in List.h and I only need to call my function from List again in
my Stack.cpp file. For example from my Stack.cpp:
Stack::Stack(const Stack &S) :
stack(S.stack) {
}
void Stack::pop() {
stack.remove_start();
}
[......]
And I don\'t know how to call my operator== function in Stack.cpp from the List.h like the way
above. This is what my guess so far but did not work:
bool Stack::operator==(const Stack &S) {
stack.operator==(S.stack);
}
Thank you
Solution
When we wish to make a comparison, such as in an if statement, we use the double equals sign
(==).
1)bool operator==(const Stack &S); [ .......]
It means whatever the boolean operator it should be belongs to stack or equal to.
2) bool operator==(const List &list);
Likewise link list also compare with the constructor link list.
and constructor need not to call explicitly. it will call itself when program called first..
Irreducible polynomials over a field F play a similar, in a certain .pdf
Irreducible polynomials over a field F play a similar, in a certain sense, role in F[x] to the role
the prime numbers play for Z. Using your favorite proof of the existence of an infinite number of
primes as inspiration, please prove that there are infinitely many irreducible polynomials over a
field F.
Solution
if there were finite such polynomials.... p1.p2.p3.........pn
then
p1 * p2 * p3 * ......pn +1 (multiplicative unity) is a polynomial
which is either irreducible or can be written as a product of irreducible polynomials.
It cannot be irreducible since it is different from the set of irreducibles.
Also it cannot be divisible by any irreducible . Say it does pi divides this new polynomial fr
some i , then
pi divides p1*p2*......pn + 1
and also pi is one of p1,p2....pn so divides p1*p2*....pn
hence it divides 1
contradiction.
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