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

No need to iterate:

List original = ...
List shallowCopy = new ArrayList(original);

http://java.sun.com/javase/6/docs/api/java/util/ArrayList.html#ArrayList%28java.util.Collection%29