Question

Possible Duplicate:
list.clear() vs list = new ArrayList<int>();

I have a list:

List<Integer> l1  = new ArrayList<Integer>();

and added some integer variables on that list. After some operation, I need to reuse that list, so I set it to null.

Which is better, setting to null or using .clear()? Or is there another way?

Answer 1

If you set it to null, then you have to initialize it again before using it. So I would just do:

l1  = new ArrayList<Integer>();

Which I think will be faster than calling .clear()