How to count the number of iterations in a loop?

Question

Java

I'm wondering how many iterations will be executed in the outer and inner loop.
for(int i=0; i < N-1; i++) {
for(int j=0; j < Ni-1; j++) {
}
}

Answer 1

Define an integer variable before the outer loop, make it ++ in the inner one:

int iteration_count = 0;

for (int i = 0; i < N - 1; i++) {
    for (int j = 0; j < N - i - 1; j++) {
        iteration_count++;
    }
}

System.out.println(iteration_count);

If you need the total number of iterations of both loops - then in the outer one, too, ++.