Java: split a List into two sub-Lists?

Question

What\'s the simplest, most standard, and/or most efficient way to split a List into two sub-Lists in Java? It\'s OK to mutate the original List, so no copying should be nece

Answer 1

Quick semi-pseudo code:

List sub=one.subList(...);
List two=new XxxList(sub);
sub.clear(); // since sub is backed by one, this removes all sub-list items from one

That uses standard List implementation methods and avoids all the running around in loops. The clear() method is also going to use the internal removeRange() for most lists and be much more efficient.