Java ArrayList

import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.ListIterator;
import java.util.Collections;
import java.util.Random;

public class ArrayListExample {

	public static void main(String[] args) {
		//        ArrayList Creation
		List arraylistA = new ArrayList();
		List arraylistB = new ArrayList();
		//        Adding elements to the ArrayList
		for (int i = 0; i < 5; i++) {
			arraylistA.add(new Integer(i));
		}
		arraylistB.add("beginner");
		arraylistB.add("java");
		arraylistB.add("tutorial");
		arraylistB.add(".");
		arraylistB.add("com");
		arraylistB.add("java");
		arraylistB.add("site");
		//      Iterating through the ArrayList to display the Contents.
		Iterator i1 = arraylistA.iterator();
		System.out.print("ArrayList arraylistA --> ");
		while (i1.hasNext()) {
			System.out.print(i1.next() + " , ");
		}
		System.out.println();
		System.out.print("ArrayList arraylistA --> ");
		for (int j = 0; j < arraylistA.size(); j++) {
			System.out.print(arraylistA.get(j) + " , ");
		}
		System.out.println();
		Iterator i2 = arraylistB.iterator();
		System.out.println("ArrayList arraylistB --> ");
		while (i2.hasNext()) {
			System.out.print(i2.next() + " , ");
		}
		System.out.println();
		System.out.println();
		System.out
				.println("Using ListIterator to retrieve ArrayList Elements");
		System.out.println();
		ListIterator li1 = arraylistA.listIterator();
		//       next(), hasPrevious(), hasNext(), hasNext() nextIndex() can be used with a
		//        ListIterator interface implementation
		System.out.println("ArrayList arraylistA --> ");
		while (li1.hasNext()) {
			System.out.print(li1.next() + " , ");
		}
		System.out.println();
		//        Searching for an element in the ArrayList
		int index = arraylistB.indexOf("java");
		System.out.println("'java' was found at : " + index);
		int lastIndex = arraylistB.lastIndexOf("java");
		System.out.println("'java' was found at : " + lastIndex
				+ " from the last");
		System.out.println();
		//        Getting the subList from the original List
		List subList = arraylistA.subList(3, arraylistA.size());
		System.out.println("New Sub-List(arraylistA) from index 3 to "
				+ arraylistA.size() + ": " + subList);
		System.out.println();
		//        Sort an ArrayList
		System.out.print("Sorted ArrayList arraylistA --> ");
		Collections.sort(arraylistA);
		System.out.print(arraylistA);
		System.out.println();
		//      Reversing an ArrayList
		System.out.print("Reversed ArrayList arraylistA --> ");
		Collections.reverse(arraylistA);
		System.out.println(arraylistA);
		System.out.println();
		//		Checking emptyness of an ArrayList
		System.out.println("Is arraylistA empty?   "
				+ arraylistA.isEmpty());
		System.out.println();
		//        Checking for Equality of ArrayLists
		ArrayList arraylistC = new ArrayList(arraylistA);
		System.out.println("arraylistA.equals(arraylistC)? "
				+ arraylistA.equals(arraylistC));
		System.out.println();
		//      Shuffling the elements of an ArrayList in Random Order
		Collections.shuffle(arraylistA, new Random());
		System.out
				.print("ArrayList arraylistA after shuffling its elements--> ");
		i1 = arraylistA.iterator();
		while (i1.hasNext()) {
			System.out.print(i1.next() + " , ");
		}
		System.out.println();
		System.out.println();
		//        Converting an ArrayList to an Array
		Object[] array = arraylistA.toArray();
		for (int i = 0; i < array.length; i++) {
			System.out.println("Array Element [" + i + "] = " + array[i]);
		}
		System.out.println();
		//        Clearing ArrayList Elements
		arraylistA.clear();
		System.out.println("arraylistA after clearing  : " + arraylistA);
		System.out.println();
	}
}