How do I time a method's execution in Java?

Question

1. How do I get a method\'s execution time?
2. Is there a Timer utility class for things like timing how long a task takes, etc?

Mos

Answer 1

There are a couple of ways to do that. I normally fall back to just using something like this:

long start = System.currentTimeMillis();
// ... do something ...
long end = System.currentTimeMillis();

or the same thing with System.nanoTime();

For something more on the benchmarking side of things there seems also to be this one: http://jetm.void.fm/ Never tried it though.