While Loop with --x

Question

Why does the following code output include 0?

public class Program {
public static void main(String[] args) {
int x = 3;
while(x > 0) {
System.out.println(--x);
}
}
}

Thanks.

Answer 1

--x decrements the value of x before it is used.

At the last loop, x is 1. x > 0 is true,

System.out.println(--x);
// prints 0.

Loop ends.