Question

This startles me. The following test fails; the loop finishes with i having the value 9, not 8. Can you explain it?

import junit.framework.TestCase;

public class TestDoWhile extends TestCase {
    final int LIMIT = 8;

    public void testDoWhile() throws Exception {
        int i = 0;
        do {
        } while (i++ < LIMIT);
        assertEquals(LIMIT, i);
    }
}

Answer 1

You need to do this:

++i < LIMIT

the way you have it the condition is evaluated, and then i is incremented. If you do the above, i will be incremented before the evaluation.