Learn Java Programming - ArrayList Common Methods Tutorial

There are many methods in the ArrayList class that have advanced parameter list types and/or return types. I will tackle those methods on an individual basis. In this tutorial I will demonstrate how to use some of the simple common methods of the ArrayList class.

+ boolean contains(Object o) - returns true if an element contains the object argument.
+ E get(int index) - returns the element at the index argument.
+ int indexOf(Object o) - returns the index of the first occurance of the object argument.
+ boolean isEmpty() - returns true if the ArrayList has no elements.
+ int lastIndexOf(Object o) - returns the index of the last occurance of the object argument.
+ E set(int index, E element) - replaces the element at the index with the second parameter object.
+ int size() - returns the number of elements in the current ArrayList instance.

[programmingjo]

I wish you did this on NetBeans. I don't have a clue of what you're doing here tbh.