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

Declare the int sum variable outside of the while loop and only have one guess = keyboard.nextInt() inside the loop. Add the user's guess to the sum in the loop as well.

Then after the loop output the user's sum.

I.e.:

int sum;
while(guess != 0)
{   
    guess = keyboard.nextInt();
    sum += guess;
}
System.out.println("Total: " + sum");

Edit: also remove the guess2 variable, as you will no longer need it.