ArrayList shallow copy iterate or clone()

Question

I need a shallow copy of an java ArrayList, should I use clone() or iterate over original list and copy elements in to new arrayList, which is fast

Answer 1

Instead of iterating manually you can use the copy constructor.

As for the speed difference between that and using clone():

1. It doesn't matter
2. Most likely there is none
3. Do a benchmark for your specific system configuration and use case