Hmm, well depending on whether you want to calculate the startup time as well you'd have to do this in two different ways.
If you don't care about the jvm startup time, you can make use of the System.currentTimeMillis(); or System.nanoTime(); methods.
Use them at the beginning and end of your main() method. Something like this:
| code: |
long start_time = System.nanoTime();
// rest of your code in `main` System.out.printf("Time elapsed in ns: %d\n", System.nanoTime() - start_time); |
Edit: Ah, Tony beat be to it.
