why does not the variable b increase even within the parentheses?

Question

why does not the variable b increase even within the parentheses?
and with increment operator before the variable.

public class Var {
public static void main(String[] args) {
int a = 21;
int b = 8;
System.out.print((a/++b)%3);
}
}

the result is 2

Answer 1

That will print 2 because of operators priority.
First it increments b (so b=9) then it divides a/b (21/9=2) and finally the module (2%3=2).

Answer 2

in fact the variable is increased. I was committing on a simple miscalculation. thanks in advanced

Answer 3

if you don't want to increment b in first place u
you can use b++ that will increment b only in the next code line