cert study guide problem

Hi Guys, can one of you explain the logic flow of this program step by step? And what would the output be? The cert guide just gives the answer but does not breakdown the logic.
Thanks. Otto.
class Question {
public static void main(String[] args) {
int i = 1;
int j = 2;
outer: while (i < j) {
++i;
inner: do {
++j;
if(i++ % 3 == 2) break inner;
else if(j++ % 3 == 1) break outer;
System.out.println(i*j);
} while (j< i);
System.out.println(i+j);
}
}
}

The output is 6.
I'll give it a shot.
i = 1; j = 2;
At outer: (i < j) (true): i become 2;
At inner: j becomes 3

it's false, because, i++ is post-increment, that means the expression is evaluated first before i gets incremented. So
2 % 3 = 2 which == 2.
So the code will break out from inner, note that i is now 3.
this will print 6.
the while statement at outer is now false, since i = 3, j = 3.
Then, end of the program.
I hope this helps.

Thanks, it helps alot.

Originally posted by Adrian Yan:
[B]The output is 6.
I'll give it a shot.
i = 1; j = 2;
At outer: (i < j) (true): i become 2;
At inner: j becomes 3

it's false, because, i++ is post-increment, that means the expression is evaluated first before i gets incremented. So
2 % 3 = 2 which == 2.
So the code will break out from inner, note that i is now 3.
this will print 6.
the while statement at outer is now false, since i = 3, j = 3.
Then, end of the program.
I hope this helps.[/B]

The part in red confuses me...how does 2 % 3 == 2 ??
You yourself say first that it is false, then you go on to say that it is true...
confused.
------------------

• Ryan Burgdorfer
  
• Java Acolyte