ArrayList Class

public class ArrayList implements List

ü      Used to create dynamic arrays

ü      Extends AbstractList and implements List interface.

ü      ArrayLists are created with an initial size.

ü      As elements are added, size increases and the array expands.

Example:

import java.util.ArrayList;

public class ArrayListDemo
{

   public static void main(String[] args)
   {

      //create an array list

      ArrayList aL = new ArrayList();

      //add element to the array list

      aL.add("C");

      aL.add("B");

      aL.add("E");

      aL.add("S");

      aL.add(1, "B2");

      System.out.println(aL.get(1));

      //display the array list

      System.out.println("Content of aL: " + aL);

      aL.remove(2);

      System.out.println(aL.get(2));

      System.out.println("aL[0]: ");

    }
}