Efficient System.arraycopy on multidimensional arrays

Question

I\'m aware that a common performance refactoring is to replace simple for\'s by System.arraycopy.

I want to ask about:

1. Whe

Answer 1

AFAIK, System.arrayCopy is the most efficient and best way to copy your arrays. I am not aware of any situations where the alternate way of implementing your own loops would be much more efficient for direct copies.