Thread: Need help with while loop

This code will print out 1 user and total one at a time in a dialog box 3 times. Now the code is how is suppose to be. Now how would I use this same code to show in the same dialog box but all 3 names and total in one dialog box?

Here is a quick output of how it should be. But not sure how to do it.

Thanks

mport javax.swing.JOptionPane;
public class testing {
 
	public static void main(String[] args){
 
		Scanner input = new Scanner(System.in);
 
		String name;
		int kilowattsUsed;
		double total;
 
		int counter = 1;
		while (counter < 4){
			System.out.println("Enter name.");
			name = input.next();
			System.out.println("How much kilowatts used?");
			kilowattsUsed = input.nextInt();
 
			total = kilowattsUsed *.056;
			counter = counter + 1;
 
			String message = String.format("%s $%.02f",name,total);
                        JOptionPane.showMessageDialog(null,message);
 
		}	
	}
}

import javax.swing.JOptionPane;
import java.util.Scanner;
 
public class testing {
 
    public static void main(String[] args){
 
        Scanner input = new Scanner(System.in);
 
        String name = "";
        int kilowattsUsed = 0;
        double total = 0;
       String message = "";
 
        int counter = 1;
        while (counter < 4){
            System.out.println("Enter name.");
            name = input.next();
            System.out.println("How much kilowatts used?");
            kilowattsUsed = input.nextInt();
 
 
            total = kilowattsUsed *.056;
            counter = counter + 1;
           if (counter ==2)
{
            message = String.format("%s $%.02f",name,total);
}
 
else
{
message = message + "\n" + String.format("%s $%.02f",name,total);
}
 
 
        }  
JOptionPane.showMessageDialog(null,message, "Message", JOptionPane.INFORMATION_MESSAGE);
    }
}

The "\n" causes it to skip a line so they aren't on the same line.
The if and else make sure that there isn't an extra line made before the first user is entered
The output is put after while loop so it will show only once instead of 3 times.
message is defined and initialized before while loop so that it won't claim it can't find symbol or that it wasn't initialized after while loop exits.

Ok...I tested it and it works.