ArrayList Vs Vector

If you are adding an element to the end, the cost for both is O(1).

If you are adding an element to the beginning, the cost for both is O(n), where n is the number of elements currently in the list.

Vector is the old collection class. Don't use it unless you need to -- use ArrayList instead. If you need a thread-safe list, use a synchronization wrapper on the ArrayList.

schapel at 2007-6-29 0:47:18 >