Please Programmers, how do I use GUI so solve problems where some variable are integer and others are float?
E.g
Code a program that output your Grade Point (GP)
where GP=(Grade Point X Course Unit)/Total Unit.
Taking CSC 400 as a the only course you did with unit 3.
Pls code this by using the GUI and not scanner.

I am expecting your instant responses
thanks.

Akprof:
Please Programmers, how do I use GUI so solve problems where some variable are integer and others are float?
E.g
Code a program that output your Grade Point (GP)
where GP=(Grade Point X Course Unit)/Total Unit.
Taking CSC 400 as a the only course you did with unit 3.
Pls code this by using the GUI and not scanner.

I am expecting your instant responses
thanks.

Try dis www.dreamincode.net/forums/topic/165458-gpa-calculator-for-javascript/

Since the variable is a score, it might be better to have it in float form to reduce margin of error. You could cast the integer scores to float like so:

score1 = 79

becomes

score1 = (float) score1

So the new value of score1 would be 79.0 instead of 79. Hopefully this is somehow of help to you.
For more info: http://stackoverflow.com/questions/4377842/how-can-i-convert-integer-into-float-in-java

can u av a try of the coding?

Akprof:
can u av a try of the coding?

It's GUI, so it's slightly more work than an ordinary java program. Would love to help but I definitely can't. Good luck though!

thanks

I am a newbie in Java, I will advice you to use an app or software that will tell where the errors are and make correction before you compiler and run the code. https://play.google.com/store/apps/details?id=com.java.manager

funny question, funny replies.


please tell us where exactly you have problems so we can help you learn. copying and pasting code will by no means help you.

You need to parse your values to a string type...

Label, textbox etc can only have a string value...

Hope you get the idea?

What have you done so far ?

Try this should work...

package package.name;

import javax.swing.Box;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class GPACalculator {
    public static void main(String[] args){
        JTextField gradeField = new JTextField(5);
        JTextField unitField = new JTextField(5);
        int noOfCourses = Integer.parseInt(JOptionPane.showInputDialog(null, "Enter number of courses:" ));
        int grades[] = new int[noOfCourses];
        int sumOfGrades = 0;
        int totalUnits = 0;
        JPanel myPanel = new JPanel();
        myPanel.add(new JLabel("Enter grade for course");
        myPanel.add(gradeField);
        myPanel.add(Box.createHorizontalStrut(15)); // a spacer
        myPanel.add(new JLabel("Enter units for course");
        myPanel.add(unitField);
        for (int i = 0; i < noOfCourses; i++){
            int result = JOptionPane.showConfirmDialog(null, myPanel, 
                  "Please Enter Grades and Unit value (e.g A and 3)", JOptionPane.OK_CANCEL_OPTION);
            if (result == JOptionPane.OK_OPTION) {
                switch(gradeField.getText().charAt(0)){
                    case 'A':
                        sumOfGrades += Integer.parseInt(unitField.getText())*5;
                        break;
                    case 'B':
                        sumOfGrades += Integer.parseInt(unitField.getText())*4;
                        break;
                    case 'C':
                        sumOfGrades += Integer.parseInt(unitField.getText())*3;
                        break;
                    case 'D':
                        sumOfGrades += Integer.parseInt(unitField.getText())*2;
                        break;
                    case 'E':
                        sumOfGrades+= Integer.parseInt(unitField.getText())*1;
                        break;
                    default:
                        JOptionPane.showMessageDialog(null, "Invalid grade";
                        break;
                }
                totalUnits += Integer.parseInt(unitField.getText());
                unitField.setText("";
                gradeField.setText("";
                
            }
        }
        double gpa = sumOfGrades/(double)totalUnits;
        JOptionPane.showMessageDialog(null, "Total Credit :"+totalUnits+" Total Score:"+sumOfGrades+"\n GPA is "+ gpa);
    }
}

OP, did the above work for you?