Prelim Grade Solver in Java

 Machine Problem

Write a Java program that will ask the user to give grades in quizzes, assignments, activities, and prelim exams, and then the program will compute the prelim grade  of the student, and display the result on the screen.

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Program Listing

Prelim_Grade.java

package test;

/*
* 
* 
* Jake Rodriguez Pomperada, MAED-IT, MIT
* www.jakerpomperada.com  and www.jakerpomperada.blogspot.com
* jakerpomperada@gmail.com
* Bacolod City, Negros Occidental Philippines
* November 7, 2021  Sunday   8:36 AM
* 
* Machine Problem
* 
* Write a Java program that will ask the user to give grades in quizzes, assignments,
* activities, and prelim exams, and then the program will compute the prelim grade
* of the student, and display the result on the screen.
* 
*/


import javax.swing.*;
import javax.swing.JOptionPane;

public class Prelim_Grade {


public static void main(String args[]) {

final JPanel panel = new JPanel();
String input1,input2,input3,input4;

double quiz=0.00, assignment=0.00;
double activities=0.00, prelim_exam=0.00;

double compute=0.00;

String reply="n";

do
{


    JOptionPane.showMessageDialog(panel, "               Prelim Grade Solver in Java   \n\n"
    	    + "                              Created By     \n\n"
    	    + "Prof. Jake Rodriguez Pomperada, MAED-IT, MIT\n\n", "About This Program",
        JOptionPane.INFORMATION_MESSAGE);
    
input1 = JOptionPane.showInputDialog(null,"Enter  Quiz Grade :");
quiz=Double.parseDouble(input1);	
	
input2 = JOptionPane.showInputDialog(null,"Enter Assignment Grade :  ");
assignment=Double.parseDouble(input2);

input3 = JOptionPane.showInputDialog(null,"Enter Activites Grade : ");
activities=Double.parseDouble(input3);


input4 = JOptionPane.showInputDialog(null,"Enter Prelim Exam Grade : ");
prelim_exam=Double.parseDouble(input4);


compute = (quiz * 0.20) + (assignment * 0.10) + (activities * 0.30) + (prelim_exam * 0.40);

JOptionPane.showMessageDialog(null,"Prelim Grade : " + Math.round(compute) );

	reply =	JOptionPane.showInputDialog(null,"Try Again? (press y or n) ");
	}while (reply.matches("y") || reply.matches("Y") );

JOptionPane.showMessageDialog(null,"End of Program"  );


	}
}