In Java- Create a Graduate class derived from Student- A graduate has.pdf
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In Java: Create a Graduate class derived from Student. A graduate has an attribute (a String) called degree, which is either "Masters" or "Doctorate", and a boolean called thesis (meaning whether they have completed their thesis and initially set to false). Write all methods . Sort students, undergrads and grads according to ID. Sort Faculty according to Department and Staff according to Salary. undergrad.inDownload undergrad.in graduate.inDownload graduate.in staff.inDownload staff.in faculty.in import java.io.File; import java.io.FileNotFoundException; import java.util.ArrayList; import java.util.Collections; import java.util.Scanner; public class H9 { public static void main(String[] args) { /******************************* * UNDERGRADUATES * ***************************/ File inFile = new File("undergrad.in"); Scanner fileInput = null; try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList<Undergraduate> myList = new ArrayList<Undergraduate>(); //input into the ArrayList while(fileInput.hasNext()) { int id=fileInput.nextInt(); int lev=fileInput.nextInt(); String name=fileInput.nextLine(); Undergraduate s=new Undergraduate(name, id, lev); myList.add(s); } //sort the arrayList Collections.sort(myList); //Output the sorted list System.out.println("*************************************"); System.out.println("The undergrads sorted according to ID"); System.out.println("*************************************"); for(int i=0; i<myList.size(); i++) { myList.get(i).writeOutput(); System.out.println(); } //close the input file fileInput.close(); /******************************* * GRADUATES * ***************************/ inFile = new File("graduate.in"); try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList<Graduate> myList2 = new ArrayList<Graduate>(); //input into the ArrayList while(fileInput.hasNext()) { int id=fileInput.nextInt(); String lev=fileInput.next(); String thesis=fileInput.next(); boolean t; if(thesis.equals("yes")) t=true; else t=false; String name=fileInput.nextLine(); Graduate s=new Graduate(name, id, lev, t); myList2.add(s); } //sort the arrayList Collections.sort(myList2); //Output the sorted list System.out.println("*************************************"); System.out.println("The grads sorted according to ID"); System.out.println("*************************************"); for(int i=0; i<myList2.size(); i++) { myList2.get(i).writeOutput(); System.out.println(); } //close the input file fileInput.close(); /******************************* * Faculty * ***************************/ inFile = new File("faculty.in"); try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayLis.
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![In Java:
Create a Graduate class derived from Student. A graduate has an attribute (a String) called
degree, which is either "Masters" or "Doctorate", and a boolean called thesis (meaning whether
they have completed their thesis and initially set to false). Write all methods .
Sort students, undergrads and grads according to ID. Sort Faculty according to Department and
Staff according to Salary.
undergrad.inDownload undergrad.in
graduate.inDownload graduate.in
staff.inDownload staff.in
faculty.in
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
public class H9 {
public static void main(String[] args) {
/*******************************
* UNDERGRADUATES
* ***************************/
File inFile = new File("undergrad.in");
Scanner fileInput = null;
try {
fileInput = new Scanner(inFile);
} catch (FileNotFoundException ex) {
//Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex);
}
//create an arrayList
ArrayList<Undergraduate> myList = new ArrayList<Undergraduate>();
//input into the ArrayList
while(fileInput.hasNext())
{ int id=fileInput.nextInt();
int lev=fileInput.nextInt();
String name=fileInput.nextLine();](https://image.slidesharecdn.com/injava-createagraduateclassderivedfromstudent-agraduatehas-230226172636-9b250f23/85/In-Java-Create-a-Graduate-class-derived-from-Student-A-graduate-has-pdf-1-320.jpg)
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For the questions below, use the W3Schools customer orders database. You need to submit
thoroughly tested SQL statements. For your convenience and reference, relevant data model is
attached as a PDF document with the assignment in the Blackboard. Name of this document is
\"Relationship diagram for W3schools order pdf.\" 1) Write a query to show Customers\' Country
wise sales totals. Your query should show Customers\' Country name and the total sale value for
that Country 2) Write a query to show Product wise sales totals. Your query should Product
name and the total sale value for that Product. 3) Write a query to show the number of orders for
each shipper. Your query should show shipper name and the count of orders with the shipper. 4)
Write a query to show number of products in each product category. Your query should show
Category name and number of products in that category 5) Write a query that shows Customers\'
country wise customer count, and order count. Your query should show country name, total
number of customers from that country, and total number of orders from the customers of that
country 6) Write a query that shows the number of products supplied by each Supplier. Your
query should show Country name, supplier name and the count of products supplied by that
supplier. Note: Sale Price Orderdetails.Quantity Products.price (see an example in the class
slides deck) W3SCHOOLS SQL is located at http://www.w3schools.com/sql/default.asp
(Preferred browser is Chrome). On this page you will find a button called \"Try it yourself\".
Click on that button. You will be redirected to a page where you see a list of tables on the right
side of the page. It is highly recommended to click \'Restore Database\' button on this page
during every session. The page contains a box where you can type in an SQL statement
involving the listed tables. You type in your SQL statement in that box and click on \"Run
SQL\'\' button. The results will be displayed if your SQL statement is syntactically correct.
Solution
1. SELECT Customers.Country, SUM(OrderDetails.Quantity * Products.Price) AS Total_Sale
FROM Customers
LEFT JOIN Orders ON Customers.CustomerID=Orders.CustomerID
LEFT JOIN OrderDetails ON Orders.OrderId=OrderDetails.OrderId
LEFT JOIN Products ON OrderDetails.ProductId=Products.ProductId
Group BY Customers.Country;
2. SELECT Products.ProductName, SUM(OrderDetails.Quantity * Products.Price) AS
Total_Sale FROM Customers
LEFT JOIN Orders ON Customers.CustomerID=Orders.CustomerID
LEFT JOIN OrderDetails ON Orders.OrderId=OrderDetails.OrderId
LEFT JOIN Products ON OrderDetails.ProductId=Products.ProductId
Group BY Products.ProductName;
You can edit these query to get other results set..
L11a Create the Student class derived from the Person class- A student.docx
L11a
Create the Student class derived from the Person class. A student has a studentNumber (an int). Write constructors, the accessor and modifier, a writeOutput method and an equals method. (You can call two Students equal if they have the same ID number). write a compareTo so that students are compared according to their ID number.
Create the Undergraduate class derived from the Student class. An undergraduate has one attribute called Level, an int. all other attributes are derived from Student. Write all constructors, modifier and accessor, a writeOutput. In this instance do NOT add a compareTo. You will see that by doing this you are allowing undergrads to be compared the way that Students are compared. This is because the compiler will look for a compareTo in the undergrad class, and finding none will then go to its super class and find the one in Student.
Submit your L11a project.
Here is a netBeans shell for this lab. L11aForStudents.zip
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
public class InheritanceDemo {
public static void main(String[] args) {
File inFile = new File("student.in");
Scanner fileInput = null;
try {
fileInput = new Scanner(inFile);
} catch (FileNotFoundException ex) {
//Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex);
}
//input student into an ArrayList
ArrayList<Student> myList = new ArrayList<Student>();
while(fileInput.hasNext())
{ int id=fileInput.nextInt();
String name=fileInput.nextLine();
Student s=new Student(name, id);
myList.add(s);
}
System.out.println();
System.out.println("Students not sorted");
for(int i=0; i<myList.size(); i++)
{
myList.get(i).WriteOutput();
}
Collections.sort(myList);
System.out.println();
System.out.println("Students sorted");
for(int i=0; i<myList.size(); i++)
{
myList.get(i).WriteOutput();
}
fileInput.close();
inFile = new File("undergrad.in");
try {
fileInput = new Scanner(inFile);
} catch (FileNotFoundException ex) {
//Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex);
}
//input student into an ArrayList
ArrayList<Undergraduate> myL = new ArrayList<Undergraduate>();
while(fileInput.hasNext())
{ int id=fileInput.nextInt();
int level = fileInput.nextInt();
String name=fileInput.nextLine();
Undergraduate u=new Undergraduate(name, id, level);
myL.add(u);
}
System.out.println();
System.out.println("Undergrads not sorted");
for(int i=0; i<myL.size(); i++)
{
myL.get(i).WriteOutput();
}
Collections.sort(myL);
System.out.println();
System.out.println("Undergrads sorted");
for(int i=0; i<myL.size(); i++)
{
myL.get(i).WriteOutput();
}
fileInput.close();
}
}
L11a Rubric
Correct attributes
default constructor
constructor with parameters
Accessor
Mutator
WriteOutput
This criterion is linked to a Learning Outcomecorrectly derive classes
L11
By now you have completed the following classes: .
Java Program I keep receiving the following error in my code- Can you.pdf
Java Program
I keep receiving the following error in my code. Can you please fix this error and test to make
sure it does not show a error? I've placed bracets but keep receiving the error "reached end of file
while parsing private static void displayStudent()" See below
Error:
sh -c javac -classpath .:target/dependency/* -d . $(find . -type f -name '*.java')
./Main.java:121: error: reached end of file while parsing
private static void displayStudent()
^
1 error
exit status 1
------------------------------------------
Code:
import java.util.Scanner;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class StudentCourseProgram {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int choice;
do {
System.out.println("Please choose an option:");
System.out.println("1. Add student");
System.out.println("2. Add course");
System.out.println("3. Display student");
System.out.println("4. Display course");
System.out.println("5. Exit");
choice = input.nextInt();
switch (choice) {
case 1:
addStudent();
break;
case 2:
addCourse();
break;
case 3:
displayStudent();
break;
case 4:
displayCourse();
break;
case 5:
System.out.println("Exiting program...");
break;
default:
System.out.println("Invalid option. Please try again.");
}
} while (choice != 5);
}
private static void addStudent() {
Scanner input = new Scanner(System.in);
System.out.println("Adding a student...");
System.out.print("Enter student ID: ");
int id = input.nextInt();
System.out.print("Enter student first name: ");
String firstName = input.next();
System.out.print("Enter student last name: ");
String lastName = input.next();
System.out.print("Enter student address: ");
String address = input.next();
System.out.print("Enter student city: ");
String city = input.next();
System.out.print("Enter student state: ");
String state = input.next();
System.out.print("Enter student zip code: ");
int zip = input.nextInt();
try {
FileWriter writer = new FileWriter("student.txt", true);
Scanner reader = new Scanner(new File("student.txt"));
while (reader.hasNextLine()) {
String line = reader.nextLine();
String[] parts = line.split(",");
if (Integer.parseInt(parts[0]) == id) {
System.out.println("Error: Student with that ID already exists.");
return;
}
}
writer.write(id + "," + firstName + "," + lastName + "," + address + "," + city + "," + state + "," +
zip + "\n");
System.out.println("Student added successfully.");
reader.close();
writer.close();
} catch (IOException e) {
System.out.println("Error: " + e.getMessage());
}
}
private static void addCourse() {
Scanner input = new Scanner(System.in);
System.out.println("Adding a course...");
System.out.print("Enter course ID: ");
int id = input.nextInt();
System.out.print("Enter course name: ");
String name = input.next();
System.out.print("Enter course description: ");
String description = input.next();
try {
FileWriter writer = new FileWriter("course.txt", true);
Scanner reader = new Scanner(new Fil.
Hello. Im currently working on the last section to my assignment a.pdf
Hello. I\'m currently working on the last section to my assignment and I\'m running into issues.
I\'ll post a screenshot of the directions provided to us, my 5 classes, and a screenshot of my
console output. Can you help me fix my code? I don\'t know where it\'s going wrong and I can\'t
figure it out. Please leave comments on what I did wrong so I can learn from it. Thank you so
much!
Here is the instructions from the pdf for reference on what I\'m trying to accomplish.
package campus;
public class Person {
private String id;
private String lastName;
private String firstName;
public Person(String id, String last, String first)
{
this.id = id;
this.lastName = last;
this.firstName = first;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getId() {
return id;
}
public String toString()
{
return id + \": \" + firstName + \" \" + lastName;
}
}
------
---Student.java---
package campus;
public class Student extends Person {
private String major;
private int level;
private Person obj;
public Student(String id, String last, String first, String focus, int level) {
super(id, last, first);// calling parent constructor
this.major = focus;
this.level = level;
obj = new Person(id, last, first);
}
public String getMajor() {
return major;
}
public void setMajor(String major) {
this.major = major;
}
public int getLevel() {
return level;
}
public void setLevel(int level) {
this.level = level;
}
@Override
public String toString() { // override toString() method
return \"id: \" + obj.getId() + \", Name: \" + obj.getFirstName() + \" \" + obj.getLastName()
+ \", major is \"
+ this.major + \" and their level is \" + this.level;
}
}
------
---Faculty.java---
package campus;
public class Faculty extends Person {
private String dept;
private String rank;
private Person obj;
public Faculty(String id, String last, String first, String focus, int level) {
super(id, last, first);// calling parent constructor
}
public String getDept() {
return dept;
}
public void setDept(String dept) {
this.dept = dept;
}
public String getRank() {
return rank;
}
public void setRank(int level) {
this.rank = rank;
}
@Override
public String toString() { // override toString() method
return \"id: \" + obj.getId() + \", Name: \" + obj.getFirstName() + \" \" + obj.getLastName()
+ \", deptartment is \"
+ this.dept + \" and their rank is \" + this.rank;
}
}
------
---Section.java---
package campus;
public class Section {
private String id;
private Faculty instructor;
private Student[] enrolled;
private int numofEnroll;
private int capacity;
private String location;
private String time;
private String semester;
public Section(String id, Faculty instructor, int capacity, String location, String time, String
semester) {
}
public Section(String id, int capacity) {
this.id = id;
this.capacity .
public class Person { private String name; private int age;.pdf
public class Person
{
private String name;
private int age;
public Person()
{
name=\"\";
age=0;
}
/**
Create a person with a given name and age.
@param name the name
@param age the age
*/
public Person(String name, int age)
{
this.name = name;
this.age = age;
}
/**
Get the name.
@return the name
*/
public String getName()
{
return name;
}
/**
Change the name.
@param name the name
*/
public void setName(String name)
{
this.name = name;
}
/**
Get the age.
@return the age
*/
public int getAge()
{
return age;
}
/**
Change the age.
@param age the age
*/
public void setAge()
{
this.age = age;
}
/**
Convert person to string form.
*/
public String toString()
{
return \"Name: \" + name + \"\\t\" + \"Age: \" + age;
}
}
OUTPUT should look like this!
Solution
solution
package com.prt.test;
public class Person
{
protected String name;
protected int age;
public Person()
{
name=\"\";
age=0;
}
/**
Create a person with a given name and age.
@param name the name
@param age the age
*/
public Person(String name, int age)
{
this.name = name;
this.age = age;
}
/**
Get the name.
@return the name
*/
public String getName()
{
return name;
}
/**
Change the name.
@param name the name
*/
public void setName(String name)
{
this.name = name;
}
/**
Get the age.
@return the age
*/
public int getAge()
{
return age;
}
/**
Change the age.
@param age the age
*/
public void setAge()
{
this.age = age;
}
/**
Convert person to string form.
*/
public String toString()
{
return \"Name: \" + name + \"\\t\" + \"Age: \" + age;
}
}
package com.prt.test;
public class Student extends Person implements Comparable{
private int studentId;
private String major;
/**
* @return the studentId
*/
public int getStudentId() {
return studentId;
}
/**
* @param studentId the studentId to set
*/
public void setStudentId(int studentId) {
this.studentId = studentId;
}
/**
* @return the major
*/
public String getMajor() {
return major;
}
/**
* @param major the major to set
*/
public void setMajor(String major) {
this.major = major;
}
public Student(String name, int age, int studentId, String major) {
super(name, age);
this.studentId = studentId;
this.major = major;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return \"name:\" + name+ \"\\t\"+\"\\t\"+\"age:\"+ age+\"\\t\"+ \"studentId :\"+ studentId +
\"\\t\" +\" major:\"+ major;
}
public int compareTo(Student st){
if(studentId==st.studentId)
return 0;
else if(studentId>st.studentId)
return 1;
else
return -1;
}
}
package com.prt.test;
public class Instructor extends Person implements Comparable {
private double salary;
public Instructor(String name, int age, double salary) {
super(name, age);
this.salary = salary;
}
/**
* @return the salary
*/
public double getSalary() {
return salary;
}
/**
* @param salary
* the salary to set
*/
public void setSalary(double salary) {
this.salary = salary;
}
public int compareTo(Instructor is) {
if (salary == is.salary)
return 0;
else if (salary > is.salary)
return 1;
else
ret.
Create a class named Student that has the following member variables.pdf
Create a class named Student that has the following member variables: first name (string), last
name(string), student identification number(int), an integer array where the grades of all classes
are stored, grade point average (gpa) (float). Write appropriate constructor, mutator and accessor
functions for the class along with the following A function that inputs all values from the user
(except for gpa) A function that outputs the names and gpa of students
Solution
/* Java Programme for Grades Calculation */
import java.util.Scanner;
public class Student
{
//Private varibles declaration
private String firstName;
private String lastName;
private int sid;
private int[] grades= new int[10];
int[] tempgrades= new int[10];
int noc;
private float gpa=0;
//Constructor method
Scanner in=new Scanner(System.in); //scanner class object for reading input
public static void main(String[] args)
{
Student st=new Student(); //creating object and calling default constructor
st.readInput();
st.calgpa();
}
//Mutator for firstName
public void setfirstName(String firstName)
{
this.firstName = firstName;
}
//Mutator for lastName
public void setlastName(String lastName)
{
this.lastName = lastName;
}
//Mutator for sid
public void setsid(int sid)
{
this.sid = sid;
}
//Mutator for grades
public void setgrades(int[] grades)
{
this.grades = grades;
}
void readInput() //Function to read input data
{
System.out.println(\"Enter First Name\ \"); //Prompt for name
String temp=in.nextLine(); //reading name
setfirstName(temp); //calling mutator for firstName
System.out.println(\"Enter Last Name\ \"); //Prompt for last name
String temp1=in.nextLine(); //read last anme
setlastName(temp1); //calling mutator for lastName
System.out.println(\"Enter Student ID\ \"); //prompt for student id
int temp2=in.nextInt(); //read student id
setsid(temp2); //calling mutator for sid
System.out.println(\"Enter Number of classes ID\ \"); //Prompt for Number of classes
noc=in.nextInt(); //read Number of classes
System.out.println(\"Enter Grades of classes ID\ \"); //Prompt for Grades of classes
for(int i=0;i Gpa : \" + gpa+\"\ \"); //Dispaly output
}
}
Output :
javac Student.java //Compilation of java programme
java Student //running java programme
Sample output :
Enter First Name
Ashok
Enter Last Name
Kumar
Enter Student ID
101
Enter Number of classes ID
4
Enter Grades of classes ID
10
9
8
7
First Name : Ashok Last Name : Kumar Student Id : 101 --> Gpa : 8.5.
Complete skeletonimport java.util.ArrayList; public class My.pdf
**Complete skeleton**
import java.util.ArrayList;
public class MyGenerics{
//Declarations
//****************************************************************************
//No-argument constructor:
//****************************************************************************
public MyGenerics (){
}//end of constructor
//****************************************************************************
//max: Receives a generic one-dimensional array and returns the maximum
// value in the array.
//****************************************************************************
public > E max(E[] list){
return null;
}//end of max
//****************************************************************************
//max: Receives a generic two-dimensional array and returns the maximum
// value in the array.
//****************************************************************************
public > E max(E[][] list) {
return null;
}
//****************************************************************************
//largest: Receives a generic arrayList and returns the maximum
// value in the array.
//****************************************************************************
public > E largest(ArrayList list) {
return null;
}
//****************************************************************************
//binarySearch: Receives a generic one-dimensional array and a generic key
// and returns the location of the key (positive) or
// a negative location if not found.
//****************************************************************************
public > int binarySearch(E[] list, E key) {
int low = 0;
int high = list.length - 1;
return binarySearch (list, key, low, high);
}
public > int binarySearch(E[] list, E key, int low, int high) {
return -99; // update
}
//****************************************************************************
//sort: Receives a generic arrayList and returns nothing.
//****************************************************************************
public > void sort(ArrayList list) {
}
//****************************************************************************
//sort: Receives a generic one-dimensional array and returns nothing.
//****************************************************************************
public > void sort(E[] list) {
}
//****************************************************************************
//displayOneDList: Receives a generic one-dimensional array and displays its contents
//****************************************************************************
public void displayOneDList(E[] list, String listName){
}
//****************************************************************************
//displayTwoDList: Receives a generic two-dimensional array & a string name
// and displays its contents
//****************************************************************************
public void displayTwoDList(E[][] list, String listName){
}
//****************************************************************************
//displayArray.
PLEASE MAKE SURE THE PROGRAM IS ASKING FOR INPUT FROM USER TO ADD OR.pdf
PLEASE MAKE SURE THE PROGRAM IS ASKING FOR INPUT FROM USER TO ADD
OR REMOVE NAME. DO NOT HARD CODE NAME. AGAIN MAKE SURE THE
PROGRAM IS ASKING FOR INPUT FROM USER TO ADD OR REMOVE NAME. PLEASE
MAKE SURE THE CODE RUNS WITHOUT ANY ERRORS.
Write a class that maintains the scores for a game application. Implement the addition and
removal function to update the database. The gamescore.txt contains player’ name and score data
record fields separated by comma. For Removal function, uses the name field to select record to
remove the game score record.
Use the List.java, LList.java, Dlink.java, GameEntry.java and gamescore.txt found below
Read gamescore.txt to initialize the Linked list in sorted order by score.
Ask the user to add or remove users to update the sorted linked list.
Display “Name exist” when add an exist name to the list.
Display “Name does not exist” when remove a name not on the list.
List.java File:
/** Source code example for \"A Practical Introduction to Data
Structures and Algorithm Analysis, 3rd Edition (Java)\"
by Clifford A. Shaffer
Copyright 2008-2011 by Clifford A. Shaffer
*/
/** List ADT */
public interface List
{
/**
* Remove all contents from the list, so it is once again empty. Client is
* responsible for reclaiming storage used by the list elements.
*/
public void clear();
/**
* Insert an element at the current location. The client must ensure that
* the list\'s capacity is not exceeded.
*
* @param item
* The element to be inserted.
*/
public void insert(E item);
/**
* Append an element at the end of the list. The client must ensure that
* the list\'s capacity is not exceeded.
*
* @param item
* The element to be appended.
*/
public void append(E item);
/**
* Remove and return the current element.
*
* @return The element that was removed.
*/
public E remove();
/** Set the current position to the start of the list */
public void moveToStart();
/** Set the current position to the end of the list */
public void moveToEnd();
/**
* Move the current position one step left. No change if already at
* beginning.
*/
public void prev();
/**
* Move the current position one step right. No change if already at end.
*/
public void next();
/** @return The number of elements in the list. */
public int length();
/** @return The position of the current element. */
public int currPos();
/**
* Set current position.
*
* @param pos
* The position to make current.
*/
public void moveToPos(int pos);
/** @return The current element. */
public E getValue();
}
LList.java File:
/**
* Source code example for \"A Practical Introduction to Data Structures and
* Algorithm Analysis, 3rd Edition (Java)\" by Clifford A. Shaffer Copyright
* 2008-2011 by Clifford A. Shaffer
*/
// Doubly linked list implementation
class LList implements List
{
private DLink head; // Pointer to list header
private DLink tail; // Pointer to last element in list
protected DLink curr; // Pointer ahead of current element
int cnt; // Size of list
// Constructors
LList(int size)
{
th.
Recommended
HELP IN JAVACreate a main method and use these input files to tes.pdf
For the questions below, use the W3Schools customer orders database. You need to submit
thoroughly tested SQL statements. For your convenience and reference, relevant data model is
attached as a PDF document with the assignment in the Blackboard. Name of this document is
\"Relationship diagram for W3schools order pdf.\" 1) Write a query to show Customers\' Country
wise sales totals. Your query should show Customers\' Country name and the total sale value for
that Country 2) Write a query to show Product wise sales totals. Your query should Product
name and the total sale value for that Product. 3) Write a query to show the number of orders for
each shipper. Your query should show shipper name and the count of orders with the shipper. 4)
Write a query to show number of products in each product category. Your query should show
Category name and number of products in that category 5) Write a query that shows Customers\'
country wise customer count, and order count. Your query should show country name, total
number of customers from that country, and total number of orders from the customers of that
country 6) Write a query that shows the number of products supplied by each Supplier. Your
query should show Country name, supplier name and the count of products supplied by that
supplier. Note: Sale Price Orderdetails.Quantity Products.price (see an example in the class
slides deck) W3SCHOOLS SQL is located at http://www.w3schools.com/sql/default.asp
(Preferred browser is Chrome). On this page you will find a button called \"Try it yourself\".
Click on that button. You will be redirected to a page where you see a list of tables on the right
side of the page. It is highly recommended to click \'Restore Database\' button on this page
during every session. The page contains a box where you can type in an SQL statement
involving the listed tables. You type in your SQL statement in that box and click on \"Run
SQL\'\' button. The results will be displayed if your SQL statement is syntactically correct.
Solution
1. SELECT Customers.Country, SUM(OrderDetails.Quantity * Products.Price) AS Total_Sale
FROM Customers
LEFT JOIN Orders ON Customers.CustomerID=Orders.CustomerID
LEFT JOIN OrderDetails ON Orders.OrderId=OrderDetails.OrderId
LEFT JOIN Products ON OrderDetails.ProductId=Products.ProductId
Group BY Customers.Country;
2. SELECT Products.ProductName, SUM(OrderDetails.Quantity * Products.Price) AS
Total_Sale FROM Customers
LEFT JOIN Orders ON Customers.CustomerID=Orders.CustomerID
LEFT JOIN OrderDetails ON Orders.OrderId=OrderDetails.OrderId
LEFT JOIN Products ON OrderDetails.ProductId=Products.ProductId
Group BY Products.ProductName;
You can edit these query to get other results set..
L11a Create the Student class derived from the Person class- A student.docx
L11a
Create the Student class derived from the Person class. A student has a studentNumber (an int). Write constructors, the accessor and modifier, a writeOutput method and an equals method. (You can call two Students equal if they have the same ID number). write a compareTo so that students are compared according to their ID number.
Create the Undergraduate class derived from the Student class. An undergraduate has one attribute called Level, an int. all other attributes are derived from Student. Write all constructors, modifier and accessor, a writeOutput. In this instance do NOT add a compareTo. You will see that by doing this you are allowing undergrads to be compared the way that Students are compared. This is because the compiler will look for a compareTo in the undergrad class, and finding none will then go to its super class and find the one in Student.
Submit your L11a project.
Here is a netBeans shell for this lab. L11aForStudents.zip
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
public class InheritanceDemo {
public static void main(String[] args) {
File inFile = new File("student.in");
Scanner fileInput = null;
try {
fileInput = new Scanner(inFile);
} catch (FileNotFoundException ex) {
//Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex);
}
//input student into an ArrayList
ArrayList<Student> myList = new ArrayList<Student>();
while(fileInput.hasNext())
{ int id=fileInput.nextInt();
String name=fileInput.nextLine();
Student s=new Student(name, id);
myList.add(s);
}
System.out.println();
System.out.println("Students not sorted");
for(int i=0; i<myList.size(); i++)
{
myList.get(i).WriteOutput();
}
Collections.sort(myList);
System.out.println();
System.out.println("Students sorted");
for(int i=0; i<myList.size(); i++)
{
myList.get(i).WriteOutput();
}
fileInput.close();
inFile = new File("undergrad.in");
try {
fileInput = new Scanner(inFile);
} catch (FileNotFoundException ex) {
//Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex);
}
//input student into an ArrayList
ArrayList<Undergraduate> myL = new ArrayList<Undergraduate>();
while(fileInput.hasNext())
{ int id=fileInput.nextInt();
int level = fileInput.nextInt();
String name=fileInput.nextLine();
Undergraduate u=new Undergraduate(name, id, level);
myL.add(u);
}
System.out.println();
System.out.println("Undergrads not sorted");
for(int i=0; i<myL.size(); i++)
{
myL.get(i).WriteOutput();
}
Collections.sort(myL);
System.out.println();
System.out.println("Undergrads sorted");
for(int i=0; i<myL.size(); i++)
{
myL.get(i).WriteOutput();
}
fileInput.close();
}
}
L11a Rubric
Correct attributes
default constructor
constructor with parameters
Accessor
Mutator
WriteOutput
This criterion is linked to a Learning Outcomecorrectly derive classes
L11
By now you have completed the following classes: .
Java Program I keep receiving the following error in my code- Can you.pdf
Java Program
I keep receiving the following error in my code. Can you please fix this error and test to make
sure it does not show a error? I've placed bracets but keep receiving the error "reached end of file
while parsing private static void displayStudent()" See below
Error:
sh -c javac -classpath .:target/dependency/* -d . $(find . -type f -name '*.java')
./Main.java:121: error: reached end of file while parsing
private static void displayStudent()
^
1 error
exit status 1
------------------------------------------
Code:
import java.util.Scanner;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class StudentCourseProgram {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int choice;
do {
System.out.println("Please choose an option:");
System.out.println("1. Add student");
System.out.println("2. Add course");
System.out.println("3. Display student");
System.out.println("4. Display course");
System.out.println("5. Exit");
choice = input.nextInt();
switch (choice) {
case 1:
addStudent();
break;
case 2:
addCourse();
break;
case 3:
displayStudent();
break;
case 4:
displayCourse();
break;
case 5:
System.out.println("Exiting program...");
break;
default:
System.out.println("Invalid option. Please try again.");
}
} while (choice != 5);
}
private static void addStudent() {
Scanner input = new Scanner(System.in);
System.out.println("Adding a student...");
System.out.print("Enter student ID: ");
int id = input.nextInt();
System.out.print("Enter student first name: ");
String firstName = input.next();
System.out.print("Enter student last name: ");
String lastName = input.next();
System.out.print("Enter student address: ");
String address = input.next();
System.out.print("Enter student city: ");
String city = input.next();
System.out.print("Enter student state: ");
String state = input.next();
System.out.print("Enter student zip code: ");
int zip = input.nextInt();
try {
FileWriter writer = new FileWriter("student.txt", true);
Scanner reader = new Scanner(new File("student.txt"));
while (reader.hasNextLine()) {
String line = reader.nextLine();
String[] parts = line.split(",");
if (Integer.parseInt(parts[0]) == id) {
System.out.println("Error: Student with that ID already exists.");
return;
}
}
writer.write(id + "," + firstName + "," + lastName + "," + address + "," + city + "," + state + "," +
zip + "\n");
System.out.println("Student added successfully.");
reader.close();
writer.close();
} catch (IOException e) {
System.out.println("Error: " + e.getMessage());
}
}
private static void addCourse() {
Scanner input = new Scanner(System.in);
System.out.println("Adding a course...");
System.out.print("Enter course ID: ");
int id = input.nextInt();
System.out.print("Enter course name: ");
String name = input.next();
System.out.print("Enter course description: ");
String description = input.next();
try {
FileWriter writer = new FileWriter("course.txt", true);
Scanner reader = new Scanner(new Fil.
Hello. Im currently working on the last section to my assignment a.pdf
Hello. I\'m currently working on the last section to my assignment and I\'m running into issues.
I\'ll post a screenshot of the directions provided to us, my 5 classes, and a screenshot of my
console output. Can you help me fix my code? I don\'t know where it\'s going wrong and I can\'t
figure it out. Please leave comments on what I did wrong so I can learn from it. Thank you so
much!
Here is the instructions from the pdf for reference on what I\'m trying to accomplish.
package campus;
public class Person {
private String id;
private String lastName;
private String firstName;
public Person(String id, String last, String first)
{
this.id = id;
this.lastName = last;
this.firstName = first;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getId() {
return id;
}
public String toString()
{
return id + \": \" + firstName + \" \" + lastName;
}
}
------
---Student.java---
package campus;
public class Student extends Person {
private String major;
private int level;
private Person obj;
public Student(String id, String last, String first, String focus, int level) {
super(id, last, first);// calling parent constructor
this.major = focus;
this.level = level;
obj = new Person(id, last, first);
}
public String getMajor() {
return major;
}
public void setMajor(String major) {
this.major = major;
}
public int getLevel() {
return level;
}
public void setLevel(int level) {
this.level = level;
}
@Override
public String toString() { // override toString() method
return \"id: \" + obj.getId() + \", Name: \" + obj.getFirstName() + \" \" + obj.getLastName()
+ \", major is \"
+ this.major + \" and their level is \" + this.level;
}
}
------
---Faculty.java---
package campus;
public class Faculty extends Person {
private String dept;
private String rank;
private Person obj;
public Faculty(String id, String last, String first, String focus, int level) {
super(id, last, first);// calling parent constructor
}
public String getDept() {
return dept;
}
public void setDept(String dept) {
this.dept = dept;
}
public String getRank() {
return rank;
}
public void setRank(int level) {
this.rank = rank;
}
@Override
public String toString() { // override toString() method
return \"id: \" + obj.getId() + \", Name: \" + obj.getFirstName() + \" \" + obj.getLastName()
+ \", deptartment is \"
+ this.dept + \" and their rank is \" + this.rank;
}
}
------
---Section.java---
package campus;
public class Section {
private String id;
private Faculty instructor;
private Student[] enrolled;
private int numofEnroll;
private int capacity;
private String location;
private String time;
private String semester;
public Section(String id, Faculty instructor, int capacity, String location, String time, String
semester) {
}
public Section(String id, int capacity) {
this.id = id;
this.capacity .
public class Person { private String name; private int age;.pdf
public class Person
{
private String name;
private int age;
public Person()
{
name=\"\";
age=0;
}
/**
Create a person with a given name and age.
@param name the name
@param age the age
*/
public Person(String name, int age)
{
this.name = name;
this.age = age;
}
/**
Get the name.
@return the name
*/
public String getName()
{
return name;
}
/**
Change the name.
@param name the name
*/
public void setName(String name)
{
this.name = name;
}
/**
Get the age.
@return the age
*/
public int getAge()
{
return age;
}
/**
Change the age.
@param age the age
*/
public void setAge()
{
this.age = age;
}
/**
Convert person to string form.
*/
public String toString()
{
return \"Name: \" + name + \"\\t\" + \"Age: \" + age;
}
}
OUTPUT should look like this!
Solution
solution
package com.prt.test;
public class Person
{
protected String name;
protected int age;
public Person()
{
name=\"\";
age=0;
}
/**
Create a person with a given name and age.
@param name the name
@param age the age
*/
public Person(String name, int age)
{
this.name = name;
this.age = age;
}
/**
Get the name.
@return the name
*/
public String getName()
{
return name;
}
/**
Change the name.
@param name the name
*/
public void setName(String name)
{
this.name = name;
}
/**
Get the age.
@return the age
*/
public int getAge()
{
return age;
}
/**
Change the age.
@param age the age
*/
public void setAge()
{
this.age = age;
}
/**
Convert person to string form.
*/
public String toString()
{
return \"Name: \" + name + \"\\t\" + \"Age: \" + age;
}
}
package com.prt.test;
public class Student extends Person implements Comparable{
private int studentId;
private String major;
/**
* @return the studentId
*/
public int getStudentId() {
return studentId;
}
/**
* @param studentId the studentId to set
*/
public void setStudentId(int studentId) {
this.studentId = studentId;
}
/**
* @return the major
*/
public String getMajor() {
return major;
}
/**
* @param major the major to set
*/
public void setMajor(String major) {
this.major = major;
}
public Student(String name, int age, int studentId, String major) {
super(name, age);
this.studentId = studentId;
this.major = major;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return \"name:\" + name+ \"\\t\"+\"\\t\"+\"age:\"+ age+\"\\t\"+ \"studentId :\"+ studentId +
\"\\t\" +\" major:\"+ major;
}
public int compareTo(Student st){
if(studentId==st.studentId)
return 0;
else if(studentId>st.studentId)
return 1;
else
return -1;
}
}
package com.prt.test;
public class Instructor extends Person implements Comparable {
private double salary;
public Instructor(String name, int age, double salary) {
super(name, age);
this.salary = salary;
}
/**
* @return the salary
*/
public double getSalary() {
return salary;
}
/**
* @param salary
* the salary to set
*/
public void setSalary(double salary) {
this.salary = salary;
}
public int compareTo(Instructor is) {
if (salary == is.salary)
return 0;
else if (salary > is.salary)
return 1;
else
ret.
Create a class named Student that has the following member variables.pdf
Create a class named Student that has the following member variables: first name (string), last
name(string), student identification number(int), an integer array where the grades of all classes
are stored, grade point average (gpa) (float). Write appropriate constructor, mutator and accessor
functions for the class along with the following A function that inputs all values from the user
(except for gpa) A function that outputs the names and gpa of students
Solution
/* Java Programme for Grades Calculation */
import java.util.Scanner;
public class Student
{
//Private varibles declaration
private String firstName;
private String lastName;
private int sid;
private int[] grades= new int[10];
int[] tempgrades= new int[10];
int noc;
private float gpa=0;
//Constructor method
Scanner in=new Scanner(System.in); //scanner class object for reading input
public static void main(String[] args)
{
Student st=new Student(); //creating object and calling default constructor
st.readInput();
st.calgpa();
}
//Mutator for firstName
public void setfirstName(String firstName)
{
this.firstName = firstName;
}
//Mutator for lastName
public void setlastName(String lastName)
{
this.lastName = lastName;
}
//Mutator for sid
public void setsid(int sid)
{
this.sid = sid;
}
//Mutator for grades
public void setgrades(int[] grades)
{
this.grades = grades;
}
void readInput() //Function to read input data
{
System.out.println(\"Enter First Name\ \"); //Prompt for name
String temp=in.nextLine(); //reading name
setfirstName(temp); //calling mutator for firstName
System.out.println(\"Enter Last Name\ \"); //Prompt for last name
String temp1=in.nextLine(); //read last anme
setlastName(temp1); //calling mutator for lastName
System.out.println(\"Enter Student ID\ \"); //prompt for student id
int temp2=in.nextInt(); //read student id
setsid(temp2); //calling mutator for sid
System.out.println(\"Enter Number of classes ID\ \"); //Prompt for Number of classes
noc=in.nextInt(); //read Number of classes
System.out.println(\"Enter Grades of classes ID\ \"); //Prompt for Grades of classes
for(int i=0;i Gpa : \" + gpa+\"\ \"); //Dispaly output
}
}
Output :
javac Student.java //Compilation of java programme
java Student //running java programme
Sample output :
Enter First Name
Ashok
Enter Last Name
Kumar
Enter Student ID
101
Enter Number of classes ID
4
Enter Grades of classes ID
10
9
8
7
First Name : Ashok Last Name : Kumar Student Id : 101 --> Gpa : 8.5.
Complete skeletonimport java.util.ArrayList; public class My.pdf
**Complete skeleton**
import java.util.ArrayList;
public class MyGenerics{
//Declarations
//****************************************************************************
//No-argument constructor:
//****************************************************************************
public MyGenerics (){
}//end of constructor
//****************************************************************************
//max: Receives a generic one-dimensional array and returns the maximum
// value in the array.
//****************************************************************************
public > E max(E[] list){
return null;
}//end of max
//****************************************************************************
//max: Receives a generic two-dimensional array and returns the maximum
// value in the array.
//****************************************************************************
public > E max(E[][] list) {
return null;
}
//****************************************************************************
//largest: Receives a generic arrayList and returns the maximum
// value in the array.
//****************************************************************************
public > E largest(ArrayList list) {
return null;
}
//****************************************************************************
//binarySearch: Receives a generic one-dimensional array and a generic key
// and returns the location of the key (positive) or
// a negative location if not found.
//****************************************************************************
public > int binarySearch(E[] list, E key) {
int low = 0;
int high = list.length - 1;
return binarySearch (list, key, low, high);
}
public > int binarySearch(E[] list, E key, int low, int high) {
return -99; // update
}
//****************************************************************************
//sort: Receives a generic arrayList and returns nothing.
//****************************************************************************
public > void sort(ArrayList list) {
}
//****************************************************************************
//sort: Receives a generic one-dimensional array and returns nothing.
//****************************************************************************
public > void sort(E[] list) {
}
//****************************************************************************
//displayOneDList: Receives a generic one-dimensional array and displays its contents
//****************************************************************************
public void displayOneDList(E[] list, String listName){
}
//****************************************************************************
//displayTwoDList: Receives a generic two-dimensional array & a string name
// and displays its contents
//****************************************************************************
public void displayTwoDList(E[][] list, String listName){
}
//****************************************************************************
//displayArray.
PLEASE MAKE SURE THE PROGRAM IS ASKING FOR INPUT FROM USER TO ADD OR.pdf
PLEASE MAKE SURE THE PROGRAM IS ASKING FOR INPUT FROM USER TO ADD
OR REMOVE NAME. DO NOT HARD CODE NAME. AGAIN MAKE SURE THE
PROGRAM IS ASKING FOR INPUT FROM USER TO ADD OR REMOVE NAME. PLEASE
MAKE SURE THE CODE RUNS WITHOUT ANY ERRORS.
Write a class that maintains the scores for a game application. Implement the addition and
removal function to update the database. The gamescore.txt contains player’ name and score data
record fields separated by comma. For Removal function, uses the name field to select record to
remove the game score record.
Use the List.java, LList.java, Dlink.java, GameEntry.java and gamescore.txt found below
Read gamescore.txt to initialize the Linked list in sorted order by score.
Ask the user to add or remove users to update the sorted linked list.
Display “Name exist” when add an exist name to the list.
Display “Name does not exist” when remove a name not on the list.
List.java File:
/** Source code example for \"A Practical Introduction to Data
Structures and Algorithm Analysis, 3rd Edition (Java)\"
by Clifford A. Shaffer
Copyright 2008-2011 by Clifford A. Shaffer
*/
/** List ADT */
public interface List
{
/**
* Remove all contents from the list, so it is once again empty. Client is
* responsible for reclaiming storage used by the list elements.
*/
public void clear();
/**
* Insert an element at the current location. The client must ensure that
* the list\'s capacity is not exceeded.
*
* @param item
* The element to be inserted.
*/
public void insert(E item);
/**
* Append an element at the end of the list. The client must ensure that
* the list\'s capacity is not exceeded.
*
* @param item
* The element to be appended.
*/
public void append(E item);
/**
* Remove and return the current element.
*
* @return The element that was removed.
*/
public E remove();
/** Set the current position to the start of the list */
public void moveToStart();
/** Set the current position to the end of the list */
public void moveToEnd();
/**
* Move the current position one step left. No change if already at
* beginning.
*/
public void prev();
/**
* Move the current position one step right. No change if already at end.
*/
public void next();
/** @return The number of elements in the list. */
public int length();
/** @return The position of the current element. */
public int currPos();
/**
* Set current position.
*
* @param pos
* The position to make current.
*/
public void moveToPos(int pos);
/** @return The current element. */
public E getValue();
}
LList.java File:
/**
* Source code example for \"A Practical Introduction to Data Structures and
* Algorithm Analysis, 3rd Edition (Java)\" by Clifford A. Shaffer Copyright
* 2008-2011 by Clifford A. Shaffer
*/
// Doubly linked list implementation
class LList implements List
{
private DLink head; // Pointer to list header
private DLink tail; // Pointer to last element in list
protected DLink curr; // Pointer ahead of current element
int cnt; // Size of list
// Constructors
LList(int size)
{
th.
Using Array Approach, Linked List approach, and Delete Byte Approach.pdf
Use the graph of the function f below to find the following. All local minimum values of f All
values at which f has a local minimum If there is more than one answer, separate them with
commas. All local minimum values of f All values at which f has a local minimum:
Solution
Dear student
Thank you for using Chegg
As per the given curve it is clear that the local minimum values of f are -3 & 0
Values of x when curve attain minimum values are x = -2,3.
We will be making 4 classes Main - for testing the code Hi.pdf
/*
We will be making 4 classes:
Main - for testing the code
HighscoreManager - to manage the high-scores
HighscoreComparator - I will explain this when we get there
Score - also this I will explain later
all this classes will be in the package \"highscores\"/*
//The Score Class
package highscores;
import java.io.Serializable;
public class Score implements Serializable {
private int score;
private String naam;
public int getScore() {
return score;
}
public String getNaam() {
return naam;
}
public Score(String naam, int score) {
this.score = score;
this.naam = naam;
}
}/*This class makes us able to make an object (an arraylist in our case) of the type Score that
contains the name and score of a player.
We implement serializable to be able to sort this type./*
//The ScoreComparator Class
package highscores;
import java.util.Comparator;
public class ScoreComparator implements Comparator {
public int compare(Score score1, Score score2) {
int sc1 = score1.getScore();
int sc2 = score2.getScore();
if (sc1 > sc2){
return -1;
}else if (sc1 < sc2){
return +1;
}else{
return 0;
}
}
}
/*This class is used to tell Java how it needs to compare 2 objects of the type score.
-1 means the first score is greater than the 2nd one, +1 (or you can just put 1) means it\'s smaller
and 0 means it\'s equal./*
//The HighscoreManager Class
/*First we will be making the HighscoreManager Class, this class will do the most important part
of the high-score system.
We will be using this as our base for the class:/*
package highscores;
import java.util.*;
import java.io.*;
public class HighscoreManager {
// An arraylist of the type \"score\" we will use to work with the scores inside the class
private ArrayList scores;
// The name of the file where the highscores will be saved
private static final String HIGHSCORE_FILE = \"scores.dat\";
//Initialising an in and outputStream for working with the file
ObjectOutputStream outputStream = null;
ObjectInputStream inputStream = null;
public HighscoreManager() {
//initialising the scores-arraylist
scores = new ArrayList();
}
}
/*I have added comments to explain what\'s already in the class.
We will be using a binary file to keep the high-scores in, this will avoid cheating.
To work with the scores we will use an arraylist. An arraylist is one of the great things that java
has and it\'s much better to use in this case than a regular array.
Now we will add some methods and functions./*
public ArrayList getScores() {
loadScoreFile();
sort();
return scores;
}
/*This is a function that will return an arraylist with the scores in it. It contains calls to the
function loadScoreFile() and sort(), these functions will make sure you have the scores from your
high-score file in a sorted order. We will be writing these functions later on./*
private void sort() {
ScoreComparator comparator = new ScoreComparator();
Collections.sort(scores, comparator);
}
/*This function will create a new object \"comparator\" from the class ScoreComparator.
the Colle.
Not sure why my program wont run.Programmer S.Villegas helper N.pdf
Not sure why my program wont run.
//Programmer: S.Villegas helper Noah
//File name: PP88ArrayList.java
//Description:
//****************************
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;
public class PP88ArrayList
{
public static void main(String[]args)
{
ArrayList persons = new ArrayList(25);
String fileName = \"Zips.dat\";
int i;
Scanner filescasnner = null;
try
{
filescasnner=new Scanner(new File(fileName));
for(i=0;i persons)
{
for (int i = 0; i < persons.size(); i++)
{
for (int j = 0; j < persons.size()-1; j++)
{
if((persons.get(j).getFirstName().compareTo(persons.get(j+1).getFirstName()))>0)
{
Person temp= persons.get(j);
persons.set(j, persons.get(j+1));
persons.set(j+1, temp);
}
}
}
}
public static void sortByZipCode(ArrayList persons)
{
for (int i = 0; i < persons.size(); i++)
{
for (int j = 0; j < persons.size()-1; j++)
{
if(persons.get(j).getZipCode()>persons.get(j+1).getZipCode())
{
Person temp= persons.get(j);
persons.set(j, persons.get(j+1));
persons.set(j+1, temp);
}
}
}
}
}
//Programmer: S.Villegas helper Noah
//File name: PersonList.java
//Description:
//******************************
public class PersonList
{
private String firstName, lastName;
private int Zip;
public PersonList(String firstName,String lastName, int Zip)
{
this.firstName = firstName;
this.lastName = lastName;
this.Zip = Zip;
}
public String getFirstName()
{
return firstName;
}
public int getZipCode()
{
return Zip;
}
public String toString()
{
return String.format(\"%-15s%-15s%-10d\",firstName,lastName,Zip);
}
}
Solution
//File name: PersonList.java
public class PersonList
{
private String firstName, lastName;
private int Zip;
public PersonList(String firstName,String lastName, int Zip)
{
this.firstName = firstName;
this.lastName = lastName;
this.Zip = Zip;
}
public String getFirstName()
{
return firstName;
}
public int getZipCode()
{
return Zip;
}
public String toString()
{
return String.format(\"%-15s%-15s%-10d\",firstName,lastName,Zip);
}
}
//File name: PP88ArrayList.java
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;
public class PP88ArrayList
{
public static void main(String[]args)
{
ArrayList persons = new ArrayList(25);
String fileName = \"Zips.dat\";
int i;
Scanner filescasnner = null;
try
{
filescasnner=new Scanner(new File(fileName));
while(filescasnner.hasNextLine())
{
String firstName = filescasnner.next();
String lastName = filescasnner.next();
int Zip = filescasnner.nextInt();
persons.add(new PersonList(firstName, lastName, Zip));
}
filescasnner.close();
}
catch (FileNotFoundException e)
{
System.out.println(e.getMessage());
}
System.out.println(\"\ List of names and zip codes: \");
System.out.printf(\"%-15s%-15s%-15s\ \",\"First Name\",\"Last Name\",\"Zip\");
for (int j = 0; j < persons.size(); j++)
{
System.out.println(persons.get(j));
}
System.out.println(\"\ List of names sort by first name\");
sortByNa.
Please I am trying to get this code to output in -txt file- I need you.pdf
Please I am trying to get this code to output in .txt file:
I need your help:
import java.io.File; // Import the File class
import java.io.FileNotFoundException; // Import this class to handle errors
// Import the Scanner class to read text files
import java.util.*;
import java.io.*;
public class KMeans {
List<double []> clusterCentroids;
Map<Integer,List<Double>> dataMatrix;
List<double[]> data;
Integer numClusters;
public void writeFile(List<Double> value, File filename) {
try {
FileWriter myWriter = new FileWriter(filename);
myWriter.write(value.toString());
myWriter.close();
System.out.println("Successfully wrote to the file.");
} catch (IOException e) {
System.out.println("An error occurred.");
e.printStackTrace();
}
}
public KMeans() {
data = new ArrayList<double []>();
dataMatrix = new LinkedHashMap<>();
}
void readData(String filePath, int n, List<Double> c) {
numClusters = n;
try {
BufferedReader br = new BufferedReader(new FileReader(new File(filePath)));
String line;
int i = 0;
while((line = br.readLine()) != null) {
String [] elem = line.split("\\s+");
int j = 0;
for(String d : elem) {
if(isCentroid(j, c)) {
this.clusterCentroids.get(i)[j] = ((Double.valueOf(d)));
}
//data.get(i)[j] = ((Double.valueOf(d)));
System.out.println(data.get(j)[i]);
}
System.out.println();
i++;
}
br.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
private boolean isCentroid(int j, List<Double> c) {
for(int i = 0; i < c.size(); i++) {
if(j == c.get(i)) {
return true;
}
}
return false;
}
public static void main(String [] args) {
Scanner sc = new Scanner(System.in);
List<Double> centroids = new ArrayList<>();
String filePath = ("C:\\Users\\mamdo\\eclipse-
workspace\\K_project\\src\\synthetic_control_data.txt");
int n = 6;
for(int i=0;i<n;i++) {
Random r = new Random();
centroids.add((double)r.nextInt(600)+1);
}
System.out.println("Initial Clusters Centroids : " + centroids);
KMeans km = new KMeans();
//km.readData(filePath,n,centroids);
//km.calc();
}
}
.
Teacher.javaimport java.util.Arrays; import java.util.Scanner;.pdf
Teacher.java
import java.util.Arrays;
import java.util.Scanner;
public class Teacher {
//Creating Arrays
String names[]=new String[5];
char grades[]=new char[5];
double tests[][]=new double[5][4];
double avgarr[]=new double[5];
Scanner sc=null;
//Default constructor
public Teacher() {
sc=new Scanner(System.in);
}
/*this method will get each student information
* and populates that information into an array
*/
public void getStudentsTestScore()
{
for(int i=0;i<5;i++)
{
//getting the name of each student
System.out.print(\"Enter Name of Student \"+(i+1)+\" :\");
names[i]=sc.next();
for(int j=0;j<4;j++)
{
//Getting the test score in each test of every student
System.out.print(\" Test \"+(j+1)+\" score :\");
tests[i][j]=sc.nextDouble();
}
System.out.println(\" \");
}
}
/* this method will display the grade of the student
* based on user entered name which is passed
* as parameter to this method
*/
public char getStudentGrade(String name)
{
char grade = 0;
double sum,avg=0.0;
for(int h=0;h<5;h++)
{
sum=0.0;
for(int m=0;m<4;m++)
{
//calculating the total score in all 4 tests of each student
sum+=tests[h][m];
}
//calculating average
avg=sum/4;
//Populating into an array
avgarr[h]=avg;
//based on the average test score corresponding grade will be given
if(avg>=90 && avg<=100)
{
grade=\'A\';
}
else if(avg>=80 && avg<=89)
{
grade=\'B\';
}
else if(avg>=70 && avg<=79)
{
grade=\'C\';
}
else if(avg>=60 && avg<=69)
{
grade=\'D\';
}
else if(avg<=59)
{
grade=\'F\';
}
grades[h]=grade;
}
//Getting the corresponding student grade
for(int i=0;i<5;i++)
if(names[i].equalsIgnoreCase(name))
{
grade=grades[i];
}
return grade;
}
/* This will return the average test score of a student
* whose name is passed as parameter to this method
*/
public double getStudentAvgTestScore(String name)
{
double sum=0.0,avg=0.0;
for(int i=0;i<5;i++)
if(names[i].equalsIgnoreCase(name))
{
for(int k=0;k<4;k++)
{
sum+=tests[i][k];
}
}
avg=sum/4;
return avg;
}
//toString(0 method displays each student name,average test score and grade
@Override
public String toString() {
for(int i=0;i<5;i++)
{
System.out.println(\"\ \ Student Name :\"+names[i]);
System.out.println(\"Average Test Score :\"+avgarr[i]);
System.out.println(\"Grade :\"+grades[i]);
}
return \"\";
}
}
___________________________________________
TestClass.java
import java.util.Scanner;
public class TestClass {
public static void main(String[] args) {
//Scanner class object is sued to read th inputs entered by the user.
Scanner sc=new Scanner(System.in);
//Creating Teacher class Object
Teacher t=new Teacher();
/*calling the method on the Teacher class
* Which will read the data of every student entered by the user
*/
t.getStudentsTestScore();
//Getting the name of the student for which he want to display the grade
System.out.print(\"Enter Student Name for Grade :\");
String name=sc.next();
//Displaying particular student\'s Average test score
System.out.println(name +\" Average test score is :\"+t.getStudentAvgTestScore(name));
//Dis.
Can someone help me with this code When I run it, it stops after th.pdf
Can someone help me with this code? When I run it, it stops after the output
Enter Student 1 Details
Name
I would just like to know what is incorrect with my code & how I can fix it.
Here is my code:
package studentclient;
import java.util.Scanner;
public class StudentClient {
public static void main(String[] args) {
Student s1;
Student s2;
s1 = new Student(\"Lisa\", \"111-11-111\", 3.0);
s2 = new Student(\"Jacob\", \"777-77-777\", 4.0);
System.out.println(\"Enter Student 1 Details\");
System.out.println(\"Name\");
Scanner sc=new Scanner(System.in);
String Name = sc.next();
System.out.println(\"Social Security number\");
String Ssn = sc.next();
System.out.println(\"GPA\");
double gpa = sc.nextDouble();
System.out.println(\"Enter Student 2 Details\");
System.out.println(\"Name\");
Name=sc.next();
System.out.println(\"social security number\");
Ssn=sc.next();
System.out.println(\"GPA\");
gpa=sc.nextDouble();
System.out.println(\"Student 1 deatils\");
System.out.println(\"name\"+s1.getName());
System.out.println(\"Social Secuirty Number:\"+s1.getSsn());
System.out.println(\"GPA:\"+s1.getGpa());
System.out.println(\"Student 2 details\");
System.out.println(\"name\"+s2.getName());
System.out.println(\"Social Security Number:\"+s2.getSsn());
System.out.println(\"GPA:\"+s2.getGpa());
if(s1 ==(s2))
System.out.println(\"Student details are equal\");
else
System.out.println(\"Student details are not equal\");
s2 = new Student(\"Jacob\", \"000-00-000\", 4.0);
System.out.println(\"Enter new details for Student 2\");
System.out.println(\"Name:\");
Name=sc.next();
s2.setName();
System.out.println(\"Social Security number\");
Ssn=sc.next();
s2.setSsn(Ssn);
System.out.println(\"GPA\");
gpa=sc.nextDouble();
s2.setGpa(gpa);
if(s1 ==(s2))
System.out.println(\"Student details are equal\");
else
System.out.println(\"Student details are not equal\");
}
}
package studentclient;
class Student {
String name;
String social_security_number;
double GPA;
public Student( String newName, String newSsn, double newGpa )
{
this.name=newName;
this.social_security_number=newSsn;
this.GPA=newGpa;
}
public String getName( )
{
return this.name;
}
public void setName( String newName )
{
this.name=newName;
}
public String getSsn( )
{
return this.social_security_number;
}
public void setSsn( String newSsn )
{
// Your code here
this.social_security_number=newSsn;
}
public double getGpa( )
{
return this.GPA;
}
public void setGpa( double newGpa )
{
if(newGpa<0 || newGpa>4)
System.out.println(\"Error! Gpa value should be in the range(0 to 4 ) only.\");
else
this.GPA=newGpa;
}
@Override
public String toString( )
{
return (\"name:\"+this.name+\" Social Security number:\"+this.social_security_number+ \"
GPA:\"+this.GPA);
}
public boolean equals( Student S )
{
boolean ans=false;
if(this.name.equals(S.name) && this.social_security_number.equals(S.social_security_number)
&&this.GPA==S.GPA)
{
ans=true;
}
return ans;
}
void setName() {
throw new UnsupportedOperationException(\"Not supported yet..
2. Create a Java class called EmployeeMain within the same project Pr.docx
2. Create a Java class called EmployeeMain within the same project Pr
package singlylinkedlist; public class Node { public String valu.pdf
package singlylinkedlist;
public class Node {
public String value;
public Node next;
public Node(String value) {
this.value = value;
}
@Override
public String toString() {
return value;
}
}
SingleyLinkedList.java :
package singlylinkedlist;
import java.io.*;
import java.util.*;
/**
* Defines the interface for a singly-linked list.
*
*/
public interface SinglyLinkedList {
/**
* @return Reference to the first node. If the list is empty, this method
* returns null.
*/
public Node getFirst();
/**
* @return Reference to the last node . If the list is empty, this method
* returns null.
*/
public Node getLast();
/**
* @return Number of nodes in the list
*/
public int size();
/**
* @return true if the list has no nodes; false otherwise
*/
public boolean isEmpty();
/**
* Removes all nodes in the list.
*/
public void clear();
/**
* Inserts a new node with the given value after cursor.
*
* @param cursor
* The node to insert after. Set this to null to insert value as
the
* new first Node.
* @param value
* The value to insert
* @return a reference to the newly inserted Node
*/
public Node insert(Node cursor, String value);
/**
* Inserts a new node with the given value at the "end" of the list.
*
* @param value
* @return a reference to the newly inserted Node
*/
public Node append(String value);
/**
* Removes the node after the specified Node (cursor) from the list.
*
* @param cursor
* A reference to the Node to remove.
*/
public void removeAfter(Node cursor);
/**
* Returns a reference to the first Node containing the key, starting from
the
* given Node.
*
* @param start
* @param key
* @return a reference to the first Node containing the key
*/
public Node find(Node start, String key);
/**
* Prints the values of all the items in a list
*/
public void printWholeList();
}
SinglyLinkedTester.java:
package sbccunittest;
import static java.lang.Math.*;
import static java.lang.System.*;
import static org.apache.commons.lang3.StringUtils.*;
import static org.junit.Assert.*;
import static sbcc.Core.*;
import java.io.*;
import java.lang.reflect.*;
import java.nio.file.*;
import java.util.*;
import java.util.stream.*;
import org.apache.commons.lang3.*;
import org.junit.*;
import org.w3c.dom.ranges.*;
import sbcc.*;
import singlylinkedlist.*;
/**
* 09/16/2021
*
* @author sstrenn
*
*/
public class SinglyLinkedListTester {
public static String newline = System.getProperty("line.separator");
public static int totalScore = 0;
public static int extraCredit = 0;
public static boolean isZeroScore = false;
public static String scorePreamble = "";
@BeforeClass
public static void beforeTesting() {
totalScore = 0;
extraCredit = 0;
}
@AfterClass
public static void afterTesting() {
if (isZeroScore) {
totalScore = 0;
extraCredit = 0;
}
println(scorePreamble + "Estimated score (w/o late penalties, etc.) is:
" + totalScore + " out of 25.");
// If the project follows the naming convention, save the results in a
folder on
// the desktop. (Alex Kohanim)
try {
String directory =
substri.
For each task, submit your source java code file.(1) Objective Im.pdf
For each task, submit your source java code file.
(1) Objective: Implement Link List
Write a class that maintains the scores for a game application. Implement the addition and
removal function to update the database. The gamescore.txt contains player’ name and score data
record fields separated by comma. For Removal function, uses the name field to select record to
remove the game score record.
Download – List.java, LList.java, Dlink.java, GameEntry.java, gamescore.txt
(a)Read gamescore.txt to initialize the Linked list in sorted order. (1 point)
(b)Provide Remove and Add function for user to update the sorted linked list. (1 point)
(2)Add a reverse function to the LList.java class to reverse the order of the linked list. (2 points).
---------------------------------------------------------------------------------------------------------------------
-----------------------------------------
//gamescore.txt
Mike,1105
Rob,750
Paul,720
Anna,660
Rose,590
Jack,510
--------------------------------------------------------------------------------------------------------------------
-----------------------------------------------------------------------
//DLink.java
/** Source code example for \"A Practical Introduction to Data
Structures and Algorithm Analysis, 3rd Edition (Java)\"
by Clifford A. Shaffer
Copyright 2008-2011 by Clifford A. Shaffer
*/
/** Doubly linked list node */
class DLink {
private E element; // Value for this node
private DLink next; // Pointer to next node in list
private DLink prev; // Pointer to previous node
/** Constructors */
DLink(E it, DLink p, DLink n)
{ element = it; prev = p; next = n; }
DLink(DLink p, DLink n) { prev = p; next = n; }
/** Get and set methods for the data members */
DLink next() { return next; }
DLink setNext(DLink nextval)
{ return next = nextval; }
DLink prev() { return prev; }
DLink setPrev(DLink prevval)
{ return prev = prevval; }
E element() { return element; }
E setElement(E it) { return element = it; }
}
--------------------------------------------------------------------------------------------------------------------
---------------------------------------------------------------------
//GameEntry.java
public class GameEntry {
protected String name;
protected int score;
public GameEntry(String n, int s) {
name = n;
score = s;
}
public String getName() {return name;}
public int getScore() {return score;}
public String toString() {
return \"(\"+name+\",\"+score+\")\";
}
}
--------------------------------------------------------------------------------------------------------------------
----------------------------------
//List.java
/** Source code example for \"A Practical Introduction to Data
Structures and Algorithm Analysis, 3rd Edition (Java)\"
by Clifford A. Shaffer
Copyright 2008-2011 by Clifford A. Shaffer
*/
/** List ADT */
public interface List {
/** Remove all contents from the list, so it is once again
empty. Client is responsible for reclaiming storage
used by the list elements. */
p.
OOPs & Inheritance Notes
To learn about the basic concepts of Object Oriented Programming and Inheritance plus different Inheritance Models and interview questions will be covered.
Java questionI am having issues returning the score sort in numeri.pdf
Java question
I am having issues returning the score sort in numerical order for more than 2 entries. I had to
develop an enhancement which allowed the application to sort the list by score. The easiest
solution is probably to create a second student class (perhaps called StudentScore) that
implements the IComparable interface to sort by score rather than by name
StudentSortApp
import java.util.*;
public class StudentSortApp
{
public static void main(String[] args)
{
System.out.println(\"Welcome to the Student Scores Application.\"+\"\ \");
Scanner sc = new Scanner(System.in);
System.out.print(\"Enter number of students to enter: \");
int numberofStudents = sc.nextInt();
//arrays storing student name and score
Student[] students = new Student[numberofStudents];
StudentScore [] studentScores = new StudentScore [numberofStudents];
int t = 0;
for (int i = 0; i < numberofStudents; i++)
{
System.out.println(\"\");
String studentLastName = Validator.lastName(sc, \"Student \" + (i+1) + \" Last name: \");
String studentFirstName = Validator.lastName(sc, \"Student \" + (i+1) + \" First name: \");
int studentScore = Validator.validScore(sc, \"Student \" + (i+1) + \" score : \");
students [t] = new Student(studentFirstName, studentLastName , studentScore);
studentScores [t] = new StudentScore(studentFirstName, studentLastName , studentScore);
t = t + 1;
}
//output
System.out.println(\"\");
System.out.println(\"Last Name Sort\");
Arrays.sort(students, 0, numberofStudents);
for(Student i: students)
System.out.println(i.getlastName()+\", \"+i.getfirstName()+\": \"+i.getScore());
System.out.println();
System.out.println(\"Score Sort\");
Arrays.sort(studentScores, 0, numberofStudents);
for(StudentScore i: studentScores)
System.out.println(i.getlastName()+\", \"+i.getfirstName()+\": \"+i.getScore());
}
}
Validator Class
import java.util.Scanner;
public class Validator
{
public static int validScore(Scanner sc, String prompt)
{
int studentScore = 0;
boolean isValid = false;
while (isValid == false)
{
System.out.print (prompt);
studentScore = sc.nextInt();
if (studentScore > 100 || studentScore < 0)
{
System.out.println(\"Error! You have to enter a score between 0 and 100\");
}
else
{
isValid = true;
}
}
return studentScore;
}
public static String lastName(Scanner sc, String prompt)
{
Scanner input = new Scanner(System.in);
String StudentName = \"\";
boolean isvalid = false;
while (isvalid == false)
{
System.out.print (prompt);
StudentName = input.nextLine();
if (StudentName == null || StudentName.equals(\"\"))
{
System.out.println(\"Error! You have to enter a name.\");
}
else
{
isvalid = true;
}
}
return StudentName;
}
}
Student Class
public class Student implements Comparable
{
private String firstName = \"\";
private String lastName = \"\";
private int score = 0;
// Student Class constructor
public Student(String firstName, String lastName, int score)
{
this.firstName = firstName;
this.lastName = lastName;
this.score = score;
}
@Override
public int compareTo.
Use arrays to store data for analysis. Use functions to perform the .pdf
Use arrays to store data for analysis. Use functions to perform the analysis described below. All
output is to be written to an output file.
Solution
import java.util.Scanner;
import java.util.ArrayList;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
public class DNA{
private String dna;
public DNA(){
}
public void read_store(String filename){
/*try {
Scanner in;
//in = new Scanner(new FileReader(filename));
dna = in.next();
}catch(IOException e){
System.out.println(\"file not there \" + e);
return;
}*/
}
public char compliment_base(char c){
if(c == \'A\') return \'T\';
if(c == \'T\') return \'A\';
if(c == \'G\') return \'C\';
if(c == \'C\') return \'G\';
return \' \';
}
public void DrawDNA(String seq){
System.out.println(\"---+-----+------+------+------\");
for (char c : seq.toCharArray() ) {
System.out.print(c + \" \");
}
System.out.println(\"DNA Sequence \");
System.out.println(\"................................\");
for (char c : seq.toCharArray() ) {
System.out.print(compliment_base(c) + \" \");
}
System.out.println(\" Complement \");
System.out.println(\"---+-----+------+------+------\");
System.out.println(\"\");
}
public void Prefix(int n, String base){
String output = base.substring(0,n);
DrawDNA(output);
}
public static void main(String[] args) {
DNA d = new DNA();
d.DrawDNA(\"ATGC\");
d.Prefix(4,\"ACGTTGCA\");
}
}
---+-----+------+------+------
A T G C DNA Sequence
................................
T A C G Complement
---+-----+------+------+------
---+-----+------+------+------
A C G T DNA Sequence
................................
T G C A Complement
---+-----+------+------+------.
Note- Can someone help me with the Public boolean add(E value) method.pdf
Note: Can someone help me with the Public boolean add(E value) method and Private void
add(E value,Node n) method. I have everything but it is not working. Also need help with the
remove methods. Both public and private methods for remove. package edu.ust.cisc; import
java.util.Iterator; import java.util.NoSuchElementException; public class CiscSortedLinkedList
> implements CiscList { /** * A reference to this list's dummy node. Its next reference should
refer to the node containing the first element * in this list, or it should refer to itself if the list is
empty. The next reference within the node containing * the last element in this list should refer to
dummy, thus creating a cyclic list. */ private Node dummy; /** * Number of elements in the list.
*/ private int size; /** * Constructs an empty CiscSortedLinkedList instance with a non-null
dummy node whose next reference refers to * itself. */ public CiscSortedLinkedList() { dummy
= new Node<>(null, null); dummy.next = dummy; } /** * Returns the number of elements in
this list. * * @return the number of elements in this list */ @Override public int size() { return
size; } /** * Returns {@code true} if this list contains no elements. * * @return {@code true} if
this list contains no elements */ @Override public boolean isEmpty() { return size==0; } /** *
Returns {@code true} if this list contains the specified element (compared using the {@code
equals} method). * This implementation should stop searching as soon as it is able to determine
that the specified element is not * present. * @param o element whose presence in this list is to
be tested * @return {@code true} if this list contains the specified element * @throws
NullPointerException if the specified element is null */ @Override public boolean
contains(Object o) { if(o==null){ throw new NullPointerException(); } return
containsHelper(o,dummy.next); } private boolean containsHelper(Object o, Node node){
if(node== dummy){ return false; } else if(o.equals(node.data)){ return true; } else{ return
containsHelper(o,node.next); } } /** * Returns an iterator over the elements in this list in proper
sequence. * * @return an iterator over the elements in this list in proper sequence */ @Override
public Iterator iterator() { //return new Iterator (){ //private Node curr = dummy.next; //private
Node prev = dummy; //private boolean canRemove = false; return new CiscLinkedListIterator();
} /** * Returns an array containing all of the elements in this list in proper sequence (from first
to last element). * *
The returned array will be "safe" in that no references to it are maintained by this list. (In other
words, * this method must allocate a new array even if this list is backed by an array). The caller
is thus free to modify * the returned array. * * @return an array containing all of the elements in
this list in proper sequence */ @Override public Object[] toArray() { Object[] arr = new
Object[size]; int i = 0; for(Node current = dummy;curren.
Note- E0- Equilibrium demand and supply for labour - DL- Demand for la.pdf
Note: E 0 = Equilibrium demand and supply for labour ; D L = Demand for labour; S L = Labour
supply (i) What was the employed population in Australia before the bushfires? 1 Mark.
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Use the graph of the function f below to find the following. All local minimum values of f All
values at which f has a local minimum If there is more than one answer, separate them with
commas. All local minimum values of f All values at which f has a local minimum:
Solution
Dear student
Thank you for using Chegg
As per the given curve it is clear that the local minimum values of f are -3 & 0
Values of x when curve attain minimum values are x = -2,3.
We will be making 4 classes Main - for testing the code Hi.pdf
/*
We will be making 4 classes:
Main - for testing the code
HighscoreManager - to manage the high-scores
HighscoreComparator - I will explain this when we get there
Score - also this I will explain later
all this classes will be in the package \"highscores\"/*
//The Score Class
package highscores;
import java.io.Serializable;
public class Score implements Serializable {
private int score;
private String naam;
public int getScore() {
return score;
}
public String getNaam() {
return naam;
}
public Score(String naam, int score) {
this.score = score;
this.naam = naam;
}
}/*This class makes us able to make an object (an arraylist in our case) of the type Score that
contains the name and score of a player.
We implement serializable to be able to sort this type./*
//The ScoreComparator Class
package highscores;
import java.util.Comparator;
public class ScoreComparator implements Comparator {
public int compare(Score score1, Score score2) {
int sc1 = score1.getScore();
int sc2 = score2.getScore();
if (sc1 > sc2){
return -1;
}else if (sc1 < sc2){
return +1;
}else{
return 0;
}
}
}
/*This class is used to tell Java how it needs to compare 2 objects of the type score.
-1 means the first score is greater than the 2nd one, +1 (or you can just put 1) means it\'s smaller
and 0 means it\'s equal./*
//The HighscoreManager Class
/*First we will be making the HighscoreManager Class, this class will do the most important part
of the high-score system.
We will be using this as our base for the class:/*
package highscores;
import java.util.*;
import java.io.*;
public class HighscoreManager {
// An arraylist of the type \"score\" we will use to work with the scores inside the class
private ArrayList scores;
// The name of the file where the highscores will be saved
private static final String HIGHSCORE_FILE = \"scores.dat\";
//Initialising an in and outputStream for working with the file
ObjectOutputStream outputStream = null;
ObjectInputStream inputStream = null;
public HighscoreManager() {
//initialising the scores-arraylist
scores = new ArrayList();
}
}
/*I have added comments to explain what\'s already in the class.
We will be using a binary file to keep the high-scores in, this will avoid cheating.
To work with the scores we will use an arraylist. An arraylist is one of the great things that java
has and it\'s much better to use in this case than a regular array.
Now we will add some methods and functions./*
public ArrayList getScores() {
loadScoreFile();
sort();
return scores;
}
/*This is a function that will return an arraylist with the scores in it. It contains calls to the
function loadScoreFile() and sort(), these functions will make sure you have the scores from your
high-score file in a sorted order. We will be writing these functions later on./*
private void sort() {
ScoreComparator comparator = new ScoreComparator();
Collections.sort(scores, comparator);
}
/*This function will create a new object \"comparator\" from the class ScoreComparator.
the Colle.
Not sure why my program wont run.Programmer S.Villegas helper N.pdf
Not sure why my program wont run.
//Programmer: S.Villegas helper Noah
//File name: PP88ArrayList.java
//Description:
//****************************
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;
public class PP88ArrayList
{
public static void main(String[]args)
{
ArrayList persons = new ArrayList(25);
String fileName = \"Zips.dat\";
int i;
Scanner filescasnner = null;
try
{
filescasnner=new Scanner(new File(fileName));
for(i=0;i persons)
{
for (int i = 0; i < persons.size(); i++)
{
for (int j = 0; j < persons.size()-1; j++)
{
if((persons.get(j).getFirstName().compareTo(persons.get(j+1).getFirstName()))>0)
{
Person temp= persons.get(j);
persons.set(j, persons.get(j+1));
persons.set(j+1, temp);
}
}
}
}
public static void sortByZipCode(ArrayList persons)
{
for (int i = 0; i < persons.size(); i++)
{
for (int j = 0; j < persons.size()-1; j++)
{
if(persons.get(j).getZipCode()>persons.get(j+1).getZipCode())
{
Person temp= persons.get(j);
persons.set(j, persons.get(j+1));
persons.set(j+1, temp);
}
}
}
}
}
//Programmer: S.Villegas helper Noah
//File name: PersonList.java
//Description:
//******************************
public class PersonList
{
private String firstName, lastName;
private int Zip;
public PersonList(String firstName,String lastName, int Zip)
{
this.firstName = firstName;
this.lastName = lastName;
this.Zip = Zip;
}
public String getFirstName()
{
return firstName;
}
public int getZipCode()
{
return Zip;
}
public String toString()
{
return String.format(\"%-15s%-15s%-10d\",firstName,lastName,Zip);
}
}
Solution
//File name: PersonList.java
public class PersonList
{
private String firstName, lastName;
private int Zip;
public PersonList(String firstName,String lastName, int Zip)
{
this.firstName = firstName;
this.lastName = lastName;
this.Zip = Zip;
}
public String getFirstName()
{
return firstName;
}
public int getZipCode()
{
return Zip;
}
public String toString()
{
return String.format(\"%-15s%-15s%-10d\",firstName,lastName,Zip);
}
}
//File name: PP88ArrayList.java
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;
public class PP88ArrayList
{
public static void main(String[]args)
{
ArrayList persons = new ArrayList(25);
String fileName = \"Zips.dat\";
int i;
Scanner filescasnner = null;
try
{
filescasnner=new Scanner(new File(fileName));
while(filescasnner.hasNextLine())
{
String firstName = filescasnner.next();
String lastName = filescasnner.next();
int Zip = filescasnner.nextInt();
persons.add(new PersonList(firstName, lastName, Zip));
}
filescasnner.close();
}
catch (FileNotFoundException e)
{
System.out.println(e.getMessage());
}
System.out.println(\"\ List of names and zip codes: \");
System.out.printf(\"%-15s%-15s%-15s\ \",\"First Name\",\"Last Name\",\"Zip\");
for (int j = 0; j < persons.size(); j++)
{
System.out.println(persons.get(j));
}
System.out.println(\"\ List of names sort by first name\");
sortByNa.
Please I am trying to get this code to output in -txt file- I need you.pdf
Please I am trying to get this code to output in .txt file:
I need your help:
import java.io.File; // Import the File class
import java.io.FileNotFoundException; // Import this class to handle errors
// Import the Scanner class to read text files
import java.util.*;
import java.io.*;
public class KMeans {
List<double []> clusterCentroids;
Map<Integer,List<Double>> dataMatrix;
List<double[]> data;
Integer numClusters;
public void writeFile(List<Double> value, File filename) {
try {
FileWriter myWriter = new FileWriter(filename);
myWriter.write(value.toString());
myWriter.close();
System.out.println("Successfully wrote to the file.");
} catch (IOException e) {
System.out.println("An error occurred.");
e.printStackTrace();
}
}
public KMeans() {
data = new ArrayList<double []>();
dataMatrix = new LinkedHashMap<>();
}
void readData(String filePath, int n, List<Double> c) {
numClusters = n;
try {
BufferedReader br = new BufferedReader(new FileReader(new File(filePath)));
String line;
int i = 0;
while((line = br.readLine()) != null) {
String [] elem = line.split("\\s+");
int j = 0;
for(String d : elem) {
if(isCentroid(j, c)) {
this.clusterCentroids.get(i)[j] = ((Double.valueOf(d)));
}
//data.get(i)[j] = ((Double.valueOf(d)));
System.out.println(data.get(j)[i]);
}
System.out.println();
i++;
}
br.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
private boolean isCentroid(int j, List<Double> c) {
for(int i = 0; i < c.size(); i++) {
if(j == c.get(i)) {
return true;
}
}
return false;
}
public static void main(String [] args) {
Scanner sc = new Scanner(System.in);
List<Double> centroids = new ArrayList<>();
String filePath = ("C:\\Users\\mamdo\\eclipse-
workspace\\K_project\\src\\synthetic_control_data.txt");
int n = 6;
for(int i=0;i<n;i++) {
Random r = new Random();
centroids.add((double)r.nextInt(600)+1);
}
System.out.println("Initial Clusters Centroids : " + centroids);
KMeans km = new KMeans();
//km.readData(filePath,n,centroids);
//km.calc();
}
}
.
Teacher.javaimport java.util.Arrays; import java.util.Scanner;.pdf
Teacher.java
import java.util.Arrays;
import java.util.Scanner;
public class Teacher {
//Creating Arrays
String names[]=new String[5];
char grades[]=new char[5];
double tests[][]=new double[5][4];
double avgarr[]=new double[5];
Scanner sc=null;
//Default constructor
public Teacher() {
sc=new Scanner(System.in);
}
/*this method will get each student information
* and populates that information into an array
*/
public void getStudentsTestScore()
{
for(int i=0;i<5;i++)
{
//getting the name of each student
System.out.print(\"Enter Name of Student \"+(i+1)+\" :\");
names[i]=sc.next();
for(int j=0;j<4;j++)
{
//Getting the test score in each test of every student
System.out.print(\" Test \"+(j+1)+\" score :\");
tests[i][j]=sc.nextDouble();
}
System.out.println(\" \");
}
}
/* this method will display the grade of the student
* based on user entered name which is passed
* as parameter to this method
*/
public char getStudentGrade(String name)
{
char grade = 0;
double sum,avg=0.0;
for(int h=0;h<5;h++)
{
sum=0.0;
for(int m=0;m<4;m++)
{
//calculating the total score in all 4 tests of each student
sum+=tests[h][m];
}
//calculating average
avg=sum/4;
//Populating into an array
avgarr[h]=avg;
//based on the average test score corresponding grade will be given
if(avg>=90 && avg<=100)
{
grade=\'A\';
}
else if(avg>=80 && avg<=89)
{
grade=\'B\';
}
else if(avg>=70 && avg<=79)
{
grade=\'C\';
}
else if(avg>=60 && avg<=69)
{
grade=\'D\';
}
else if(avg<=59)
{
grade=\'F\';
}
grades[h]=grade;
}
//Getting the corresponding student grade
for(int i=0;i<5;i++)
if(names[i].equalsIgnoreCase(name))
{
grade=grades[i];
}
return grade;
}
/* This will return the average test score of a student
* whose name is passed as parameter to this method
*/
public double getStudentAvgTestScore(String name)
{
double sum=0.0,avg=0.0;
for(int i=0;i<5;i++)
if(names[i].equalsIgnoreCase(name))
{
for(int k=0;k<4;k++)
{
sum+=tests[i][k];
}
}
avg=sum/4;
return avg;
}
//toString(0 method displays each student name,average test score and grade
@Override
public String toString() {
for(int i=0;i<5;i++)
{
System.out.println(\"\ \ Student Name :\"+names[i]);
System.out.println(\"Average Test Score :\"+avgarr[i]);
System.out.println(\"Grade :\"+grades[i]);
}
return \"\";
}
}
___________________________________________
TestClass.java
import java.util.Scanner;
public class TestClass {
public static void main(String[] args) {
//Scanner class object is sued to read th inputs entered by the user.
Scanner sc=new Scanner(System.in);
//Creating Teacher class Object
Teacher t=new Teacher();
/*calling the method on the Teacher class
* Which will read the data of every student entered by the user
*/
t.getStudentsTestScore();
//Getting the name of the student for which he want to display the grade
System.out.print(\"Enter Student Name for Grade :\");
String name=sc.next();
//Displaying particular student\'s Average test score
System.out.println(name +\" Average test score is :\"+t.getStudentAvgTestScore(name));
//Dis.
Can someone help me with this code When I run it, it stops after th.pdf
Can someone help me with this code? When I run it, it stops after the output
Enter Student 1 Details
Name
I would just like to know what is incorrect with my code & how I can fix it.
Here is my code:
package studentclient;
import java.util.Scanner;
public class StudentClient {
public static void main(String[] args) {
Student s1;
Student s2;
s1 = new Student(\"Lisa\", \"111-11-111\", 3.0);
s2 = new Student(\"Jacob\", \"777-77-777\", 4.0);
System.out.println(\"Enter Student 1 Details\");
System.out.println(\"Name\");
Scanner sc=new Scanner(System.in);
String Name = sc.next();
System.out.println(\"Social Security number\");
String Ssn = sc.next();
System.out.println(\"GPA\");
double gpa = sc.nextDouble();
System.out.println(\"Enter Student 2 Details\");
System.out.println(\"Name\");
Name=sc.next();
System.out.println(\"social security number\");
Ssn=sc.next();
System.out.println(\"GPA\");
gpa=sc.nextDouble();
System.out.println(\"Student 1 deatils\");
System.out.println(\"name\"+s1.getName());
System.out.println(\"Social Secuirty Number:\"+s1.getSsn());
System.out.println(\"GPA:\"+s1.getGpa());
System.out.println(\"Student 2 details\");
System.out.println(\"name\"+s2.getName());
System.out.println(\"Social Security Number:\"+s2.getSsn());
System.out.println(\"GPA:\"+s2.getGpa());
if(s1 ==(s2))
System.out.println(\"Student details are equal\");
else
System.out.println(\"Student details are not equal\");
s2 = new Student(\"Jacob\", \"000-00-000\", 4.0);
System.out.println(\"Enter new details for Student 2\");
System.out.println(\"Name:\");
Name=sc.next();
s2.setName();
System.out.println(\"Social Security number\");
Ssn=sc.next();
s2.setSsn(Ssn);
System.out.println(\"GPA\");
gpa=sc.nextDouble();
s2.setGpa(gpa);
if(s1 ==(s2))
System.out.println(\"Student details are equal\");
else
System.out.println(\"Student details are not equal\");
}
}
package studentclient;
class Student {
String name;
String social_security_number;
double GPA;
public Student( String newName, String newSsn, double newGpa )
{
this.name=newName;
this.social_security_number=newSsn;
this.GPA=newGpa;
}
public String getName( )
{
return this.name;
}
public void setName( String newName )
{
this.name=newName;
}
public String getSsn( )
{
return this.social_security_number;
}
public void setSsn( String newSsn )
{
// Your code here
this.social_security_number=newSsn;
}
public double getGpa( )
{
return this.GPA;
}
public void setGpa( double newGpa )
{
if(newGpa<0 || newGpa>4)
System.out.println(\"Error! Gpa value should be in the range(0 to 4 ) only.\");
else
this.GPA=newGpa;
}
@Override
public String toString( )
{
return (\"name:\"+this.name+\" Social Security number:\"+this.social_security_number+ \"
GPA:\"+this.GPA);
}
public boolean equals( Student S )
{
boolean ans=false;
if(this.name.equals(S.name) && this.social_security_number.equals(S.social_security_number)
&&this.GPA==S.GPA)
{
ans=true;
}
return ans;
}
void setName() {
throw new UnsupportedOperationException(\"Not supported yet..
2. Create a Java class called EmployeeMain within the same project Pr.docx
2. Create a Java class called EmployeeMain within the same project Pr
package singlylinkedlist; public class Node { public String valu.pdf
package singlylinkedlist;
public class Node {
public String value;
public Node next;
public Node(String value) {
this.value = value;
}
@Override
public String toString() {
return value;
}
}
SingleyLinkedList.java :
package singlylinkedlist;
import java.io.*;
import java.util.*;
/**
* Defines the interface for a singly-linked list.
*
*/
public interface SinglyLinkedList {
/**
* @return Reference to the first node. If the list is empty, this method
* returns null.
*/
public Node getFirst();
/**
* @return Reference to the last node . If the list is empty, this method
* returns null.
*/
public Node getLast();
/**
* @return Number of nodes in the list
*/
public int size();
/**
* @return true if the list has no nodes; false otherwise
*/
public boolean isEmpty();
/**
* Removes all nodes in the list.
*/
public void clear();
/**
* Inserts a new node with the given value after cursor.
*
* @param cursor
* The node to insert after. Set this to null to insert value as
the
* new first Node.
* @param value
* The value to insert
* @return a reference to the newly inserted Node
*/
public Node insert(Node cursor, String value);
/**
* Inserts a new node with the given value at the "end" of the list.
*
* @param value
* @return a reference to the newly inserted Node
*/
public Node append(String value);
/**
* Removes the node after the specified Node (cursor) from the list.
*
* @param cursor
* A reference to the Node to remove.
*/
public void removeAfter(Node cursor);
/**
* Returns a reference to the first Node containing the key, starting from
the
* given Node.
*
* @param start
* @param key
* @return a reference to the first Node containing the key
*/
public Node find(Node start, String key);
/**
* Prints the values of all the items in a list
*/
public void printWholeList();
}
SinglyLinkedTester.java:
package sbccunittest;
import static java.lang.Math.*;
import static java.lang.System.*;
import static org.apache.commons.lang3.StringUtils.*;
import static org.junit.Assert.*;
import static sbcc.Core.*;
import java.io.*;
import java.lang.reflect.*;
import java.nio.file.*;
import java.util.*;
import java.util.stream.*;
import org.apache.commons.lang3.*;
import org.junit.*;
import org.w3c.dom.ranges.*;
import sbcc.*;
import singlylinkedlist.*;
/**
* 09/16/2021
*
* @author sstrenn
*
*/
public class SinglyLinkedListTester {
public static String newline = System.getProperty("line.separator");
public static int totalScore = 0;
public static int extraCredit = 0;
public static boolean isZeroScore = false;
public static String scorePreamble = "";
@BeforeClass
public static void beforeTesting() {
totalScore = 0;
extraCredit = 0;
}
@AfterClass
public static void afterTesting() {
if (isZeroScore) {
totalScore = 0;
extraCredit = 0;
}
println(scorePreamble + "Estimated score (w/o late penalties, etc.) is:
" + totalScore + " out of 25.");
// If the project follows the naming convention, save the results in a
folder on
// the desktop. (Alex Kohanim)
try {
String directory =
substri.
For each task, submit your source java code file.(1) Objective Im.pdf
For each task, submit your source java code file.
(1) Objective: Implement Link List
Write a class that maintains the scores for a game application. Implement the addition and
removal function to update the database. The gamescore.txt contains player’ name and score data
record fields separated by comma. For Removal function, uses the name field to select record to
remove the game score record.
Download – List.java, LList.java, Dlink.java, GameEntry.java, gamescore.txt
(a)Read gamescore.txt to initialize the Linked list in sorted order. (1 point)
(b)Provide Remove and Add function for user to update the sorted linked list. (1 point)
(2)Add a reverse function to the LList.java class to reverse the order of the linked list. (2 points).
---------------------------------------------------------------------------------------------------------------------
-----------------------------------------
//gamescore.txt
Mike,1105
Rob,750
Paul,720
Anna,660
Rose,590
Jack,510
--------------------------------------------------------------------------------------------------------------------
-----------------------------------------------------------------------
//DLink.java
/** Source code example for \"A Practical Introduction to Data
Structures and Algorithm Analysis, 3rd Edition (Java)\"
by Clifford A. Shaffer
Copyright 2008-2011 by Clifford A. Shaffer
*/
/** Doubly linked list node */
class DLink {
private E element; // Value for this node
private DLink next; // Pointer to next node in list
private DLink prev; // Pointer to previous node
/** Constructors */
DLink(E it, DLink p, DLink n)
{ element = it; prev = p; next = n; }
DLink(DLink p, DLink n) { prev = p; next = n; }
/** Get and set methods for the data members */
DLink next() { return next; }
DLink setNext(DLink nextval)
{ return next = nextval; }
DLink prev() { return prev; }
DLink setPrev(DLink prevval)
{ return prev = prevval; }
E element() { return element; }
E setElement(E it) { return element = it; }
}
--------------------------------------------------------------------------------------------------------------------
---------------------------------------------------------------------
//GameEntry.java
public class GameEntry {
protected String name;
protected int score;
public GameEntry(String n, int s) {
name = n;
score = s;
}
public String getName() {return name;}
public int getScore() {return score;}
public String toString() {
return \"(\"+name+\",\"+score+\")\";
}
}
--------------------------------------------------------------------------------------------------------------------
----------------------------------
//List.java
/** Source code example for \"A Practical Introduction to Data
Structures and Algorithm Analysis, 3rd Edition (Java)\"
by Clifford A. Shaffer
Copyright 2008-2011 by Clifford A. Shaffer
*/
/** List ADT */
public interface List {
/** Remove all contents from the list, so it is once again
empty. Client is responsible for reclaiming storage
used by the list elements. */
p.
OOPs & Inheritance Notes
To learn about the basic concepts of Object Oriented Programming and Inheritance plus different Inheritance Models and interview questions will be covered.
Java questionI am having issues returning the score sort in numeri.pdf
Java question
I am having issues returning the score sort in numerical order for more than 2 entries. I had to
develop an enhancement which allowed the application to sort the list by score. The easiest
solution is probably to create a second student class (perhaps called StudentScore) that
implements the IComparable interface to sort by score rather than by name
StudentSortApp
import java.util.*;
public class StudentSortApp
{
public static void main(String[] args)
{
System.out.println(\"Welcome to the Student Scores Application.\"+\"\ \");
Scanner sc = new Scanner(System.in);
System.out.print(\"Enter number of students to enter: \");
int numberofStudents = sc.nextInt();
//arrays storing student name and score
Student[] students = new Student[numberofStudents];
StudentScore [] studentScores = new StudentScore [numberofStudents];
int t = 0;
for (int i = 0; i < numberofStudents; i++)
{
System.out.println(\"\");
String studentLastName = Validator.lastName(sc, \"Student \" + (i+1) + \" Last name: \");
String studentFirstName = Validator.lastName(sc, \"Student \" + (i+1) + \" First name: \");
int studentScore = Validator.validScore(sc, \"Student \" + (i+1) + \" score : \");
students [t] = new Student(studentFirstName, studentLastName , studentScore);
studentScores [t] = new StudentScore(studentFirstName, studentLastName , studentScore);
t = t + 1;
}
//output
System.out.println(\"\");
System.out.println(\"Last Name Sort\");
Arrays.sort(students, 0, numberofStudents);
for(Student i: students)
System.out.println(i.getlastName()+\", \"+i.getfirstName()+\": \"+i.getScore());
System.out.println();
System.out.println(\"Score Sort\");
Arrays.sort(studentScores, 0, numberofStudents);
for(StudentScore i: studentScores)
System.out.println(i.getlastName()+\", \"+i.getfirstName()+\": \"+i.getScore());
}
}
Validator Class
import java.util.Scanner;
public class Validator
{
public static int validScore(Scanner sc, String prompt)
{
int studentScore = 0;
boolean isValid = false;
while (isValid == false)
{
System.out.print (prompt);
studentScore = sc.nextInt();
if (studentScore > 100 || studentScore < 0)
{
System.out.println(\"Error! You have to enter a score between 0 and 100\");
}
else
{
isValid = true;
}
}
return studentScore;
}
public static String lastName(Scanner sc, String prompt)
{
Scanner input = new Scanner(System.in);
String StudentName = \"\";
boolean isvalid = false;
while (isvalid == false)
{
System.out.print (prompt);
StudentName = input.nextLine();
if (StudentName == null || StudentName.equals(\"\"))
{
System.out.println(\"Error! You have to enter a name.\");
}
else
{
isvalid = true;
}
}
return StudentName;
}
}
Student Class
public class Student implements Comparable
{
private String firstName = \"\";
private String lastName = \"\";
private int score = 0;
// Student Class constructor
public Student(String firstName, String lastName, int score)
{
this.firstName = firstName;
this.lastName = lastName;
this.score = score;
}
@Override
public int compareTo.
Use arrays to store data for analysis. Use functions to perform the .pdf
Use arrays to store data for analysis. Use functions to perform the analysis described below. All
output is to be written to an output file.
Solution
import java.util.Scanner;
import java.util.ArrayList;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
public class DNA{
private String dna;
public DNA(){
}
public void read_store(String filename){
/*try {
Scanner in;
//in = new Scanner(new FileReader(filename));
dna = in.next();
}catch(IOException e){
System.out.println(\"file not there \" + e);
return;
}*/
}
public char compliment_base(char c){
if(c == \'A\') return \'T\';
if(c == \'T\') return \'A\';
if(c == \'G\') return \'C\';
if(c == \'C\') return \'G\';
return \' \';
}
public void DrawDNA(String seq){
System.out.println(\"---+-----+------+------+------\");
for (char c : seq.toCharArray() ) {
System.out.print(c + \" \");
}
System.out.println(\"DNA Sequence \");
System.out.println(\"................................\");
for (char c : seq.toCharArray() ) {
System.out.print(compliment_base(c) + \" \");
}
System.out.println(\" Complement \");
System.out.println(\"---+-----+------+------+------\");
System.out.println(\"\");
}
public void Prefix(int n, String base){
String output = base.substring(0,n);
DrawDNA(output);
}
public static void main(String[] args) {
DNA d = new DNA();
d.DrawDNA(\"ATGC\");
d.Prefix(4,\"ACGTTGCA\");
}
}
---+-----+------+------+------
A T G C DNA Sequence
................................
T A C G Complement
---+-----+------+------+------
---+-----+------+------+------
A C G T DNA Sequence
................................
T G C A Complement
---+-----+------+------+------.
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https://meetups.mulesoft.com/events/details/mulesoft-mysore-presents-exploring-gemini-ai-and-integration-with-mulesoft/
Agenda
● Java 17 Upgrade Overview
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For Upcoming Meetups Join Mysore Meetup Group - https://meetups.mulesoft.com/mysore/
YouTube:- youtube.com/@mulesoftmysore
Mysore WhatsApp group:- https://chat.whatsapp.com/EhqtHtCC75vCAX7gaO842N
Speaker:-
Shubham Chaurasia - https://www.linkedin.com/in/shubhamchaurasia1/
Priya Shaw - https://www.linkedin.com/in/priya-shaw
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Shubham Chaurasia - https://www.linkedin.com/in/shubhamchaurasia1/
Giridhar Meka - https://www.linkedin.com/in/giridharmeka
Priya Shaw - https://www.linkedin.com/in/priya-shaw
Shyam Raj Prasad-
https://www.linkedin.com/in/shyam-raj-prasad/
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- 1. In Java: Create a Graduate class derived from Student. A graduate has an attribute (a String) called degree, which is either "Masters" or "Doctorate", and a boolean called thesis (meaning whether they have completed their thesis and initially set to false). Write all methods . Sort students, undergrads and grads according to ID. Sort Faculty according to Department and Staff according to Salary. undergrad.inDownload undergrad.in graduate.inDownload graduate.in staff.inDownload staff.in faculty.in import java.io.File; import java.io.FileNotFoundException; import java.util.ArrayList; import java.util.Collections; import java.util.Scanner; public class H9 { public static void main(String[] args) { /******************************* * UNDERGRADUATES * ***************************/ File inFile = new File("undergrad.in"); Scanner fileInput = null; try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList<Undergraduate> myList = new ArrayList<Undergraduate>(); //input into the ArrayList while(fileInput.hasNext()) { int id=fileInput.nextInt(); int lev=fileInput.nextInt(); String name=fileInput.nextLine();
- 2. Undergraduate s=new Undergraduate(name, id, lev); myList.add(s); } //sort the arrayList Collections.sort(myList); //Output the sorted list System.out.println("*************************************"); System.out.println("The undergrads sorted according to ID"); System.out.println("*************************************"); for(int i=0; i<myList.size(); i++) { myList.get(i).writeOutput(); System.out.println(); } //close the input file fileInput.close(); /******************************* * GRADUATES * ***************************/ inFile = new File("graduate.in"); try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList<Graduate> myList2 = new ArrayList<Graduate>(); //input into the ArrayList while(fileInput.hasNext()) { int id=fileInput.nextInt(); String lev=fileInput.next(); String thesis=fileInput.next(); boolean t; if(thesis.equals("yes")) t=true; else t=false; String name=fileInput.nextLine(); Graduate s=new Graduate(name, id, lev, t); myList2.add(s); } //sort the arrayList Collections.sort(myList2);
- 3. //Output the sorted list System.out.println("*************************************"); System.out.println("The grads sorted according to ID"); System.out.println("*************************************"); for(int i=0; i<myList2.size(); i++) { myList2.get(i).writeOutput(); System.out.println(); } //close the input file fileInput.close(); /******************************* * Faculty * ***************************/ inFile = new File("faculty.in"); try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList<Faculty> myList3 = new ArrayList<Faculty>(); //input into the ArrayList while(fileInput.hasNext()) { double salary =fileInput.nextDouble(); int year=fileInput.nextInt(); int ID = fileInput.nextInt(); String dept=fileInput.next(); String title=fileInput.next(); String name=fileInput.nextLine(); Faculty s=new Faculty(title, name, salary, year,ID, dept); myList3.add(s); } //sort the arrayList Collections.sort(myList3); //Output the sorted list System.out.println("*************************************"); System.out.println("The faculty sorted according to department"); System.out.println("*************************************"); for(int i=0; i<myList3.size(); i++) { myList3.get(i).writeOutput(); System.out.println();
- 4. } //close the input file fileInput.close(); /******************************* * Staff * ***************************/ inFile = new File("staff.in"); try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList<Staff> myList4 = new ArrayList<Staff>(); //input into the ArrayList while(fileInput.hasNext()) { double salary =fileInput.nextDouble(); int year=fileInput.nextInt(); int ID = fileInput.nextInt(); String dept=fileInput.next(); int PG=fileInput.nextInt(); String name=fileInput.nextLine(); Staff s=new Staff(PG, name, salary, year,ID, dept); myList4.add(s); } //sort the arrayList Collections.sort(myList4); //Output the sorted list System.out.println("*************************************"); System.out.println("The staff sorted according to salary"); System.out.println("*************************************"); for(int i=0; i<myList4.size(); i++) { myList4.get(i).writeOutput(); System.out.println(); } //close the input file fileInput.close(); }
- 5. }