How do I get the last value of ArrayList?

If you look at the List interface, E e = list.get(list.size() - 1); You can do it in this way. E is the type of list element. If the list is empty, throw an IndexOutOfBoundsException error in the get method.

If you want to view the full API documentation, you can http://docs.oracle.com/javase/6/docs/api/