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Importing the Library
Before you can use an ArrayList, you must first import the necessary library.

Java Code:

import java.util.ArrayList

Creating a Generic ArrayList
Generic ArrayList is an ArrayList with a type; no other type is allowed to be inserted into the ArrayList.

Java Code:

ArrayList<type> listName = new ArrayList<type>();

Example of this would be:

Java Code:

ArrayList<String> myArrayList = new ArrayList<String>();

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Updated 10-29-2012 at 08:29 PM by penguinCoder

Tags: arraylist, arraylist cheat sheet, arraylist guide, arraylist methods, cheat sheet

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