Question

Write a program in Java that prompts a user for Name and id number. and then the program outputs students GPA

MAIN

import java.util.StringTokenizer;

import javax.swing.JOptionPane;

public class Main {

   public static void main(String[] args) {

              
       String thedata = JOptionPane.showInputDialog(null, "Please type in Student Name. ", "Student OOP Program", JOptionPane.INFORMATION_MESSAGE);
       String name = thedata;

       Student pupil = new Student(name);

          
       //add code here
      
      
      
      
      
       String outputmsg = "The Pupil: " + pupil.getName();
       outputmsg = outputmsg + "\nID: " + pupil.getIDnumber();
       outputmsg = outputmsg + "\ngrade point average is " + pupil.getGradePoint();
      
       JOptionPane.showMessageDialog(null, outputmsg);

   }

}

Student

public class Student {

   // the private data members
   private int idNumber;
   private int hours;
   private int points;
   private String name = "";

   // Constructor
   Student(String Name) {
       idNumber = 0;
       points = 60;
       hours = 15;
       name = Name;
   }
   // end of constructor added in part c

   // the public get and set methods

   public void setIDnumber(int number) {
       idNumber = number;
   }
   public String getName() {
       return name;
   }

   public int getIDnumber() {
       return idNumber;
   }

   //add here

   public double getGradePoint() {
       return (points * 1.0 / hours);
  
   }
}

Answer 1

/* Changed source code is */

import java.util.StringTokenizer;

import javax.swing.JOptionPane;

public class Main {

   public static void main(String[] args) {

              

       String thedata = JOptionPane.showInputDialog(null, "Please type in Student Name. ", "Student OOP Program", JOptionPane.INFORMATION_MESSAGE);

       String name = thedata;

       thedata = JOptionPane.showInputDialog(null, "Please type in Student ID. ", "Student OOP Program", JOptionPane.INFORMATION_MESSAGE);

       int idNumber = Integer.parseInt(thedata);

       thedata = JOptionPane.showInputDialog(null, "Please type hours ", "Student OOP Program", JOptionPane.INFORMATION_MESSAGE);

       int hours = Integer.parseInt(thedata);

       thedata = JOptionPane.showInputDialog(null, "Please type Points ", "Student OOP Program", JOptionPane.INFORMATION_MESSAGE);

       int points = Integer.parseInt(thedata);

       

       //Student pupil1 = new Student(name); //Call this for default

       Student pupil = new Student(name, idNumber, points, hours);

       pupil.setIDnumber(idNumber);  

       

       String outputmsg = "The Pupil: " + pupil.getName();

       outputmsg = outputmsg + "\nID: " + pupil.getIDnumber();

       outputmsg = outputmsg + "\ngrade point average is " + pupil.getGradePoint();

      

       JOptionPane.showMessageDialog(null, outputmsg);

   }

}

class Student {

   // the private data members

   private int idNumber;

   private int hours;

   private int points;

   private String name = "";

   // Constructor

   Student(String Name) {

       idNumber = 0;

       points = 60;

       hours = 15;

       name = Name;

   }

   Student(String Name,int idNumber,int points,int hours){

       this.idNumber = idNumber;

       this.points = points;

       this.hours = hours;

       this.name = Name;

   }

   // end of constructor added in part c

   // the public get and set methods

   public void setIDnumber(int number) {

       idNumber = number;

   }

   public String getName() {

       return name;

   }

   public int getIDnumber() {

       return idNumber;

   }

   //add here

   public double getGradePoint() {

       return (points * 1.0 / hours);

  

   }

}

/* Editor screen*/

/* Output Window*/

/* Final output screen*/

/* Thanks*/