loop question doubt

[Shyamala S]

http://www.javaprepare.com/quests/operat_q.html
24.Which all lines are part of the output when the following code is
compiled and run. Select all correct answers.

public class test {
public static void main(String args[]) {
for(int i = 0; i < 3; i++) {
for(int j = 3; j <= 0; j--) {
if(i == j) continue;
System.out.println(i + " " + j);
}
}
}
}

A.0 0
B.0 1
C.0 2
D.0 3
E.1 0
F.1 1
G.1 2
H.1 3
I.2 0
J.2 1
K.2 2
L.2 3
M.3 0
N.3 1
O.3 2
P.3 3
Q.The program does not print anything.
correct answer is q, how ??? is it bcoz the second loop checks for j<=0 ???

[Peter Lyons]

I think your guess is correct.
The print statement is inside the inner for statement, which never gets to run because the index counter is initialized to a value which does not meet the qualification to run.
I think they were trying to fool you into thinking that "j--" executes, and the next time you try that for statement, you'll begin with j initialized to 2 instead of 3. That never happens, of course, because you've exited the for loop and are starting it again fresh with the same incompatible values.