Java has a nanosecond timer!

Java has a nanosecond timer!

It works well too.

Quick test script:

We do empty loops of varying numbers of iterations, and use the nanotimer to test how long that takes:

for( int its = 0; its < 100; its++ ) {
    long start = System.nanoTime();
    for( int i = 0; i < its; i++ ) {
    }
    long delta = System.nanoTime() - start;
    System.out.println("its " + its + ": " + delta );
}