Java - adding value in a while loop

Question

this one just is hurting my brain. http://programmingbydoing.com/a/adding-values-in-a-loop.html

Write a program that gets several integers from the user.

Answer 1

Programming by Doing :)

    int x = 0;
    int sum = 0;
    System.out.println("I will add up the numbers you give me.");
    System.out.print("Number: ");
    x = keyboard.nextInt();
    while (x != 0) {
        sum = x + sum;
        System.out.println("The total so far is " + sum + ".");
        System.out.print("Number: ");
        x = keyboard.nextInt();
    }
    System.out.println("\nThe total is " + sum + ".");