Program on vector manipulation

import java.util.*;

class VectorEx

{

public static void main(String args[])

{

Vector list=new Vector();

list.add(10);

list.insertElementAt(20,0);

list.insertElementAt(30,1);

list.add("Hello World!");

if(list.isEmpty()==true)

System.out.println("List is empty.");

else

System.out.println("List is not empty.");

System.out.println("List is: "+list);

System.out.println("First element is: "+list.firstElement());

System.out.println("Last element is: "+list.lastElement());

System.out.println("List size is: "+list.size());

System.out.println("Element at location 1: "+list.elementAt(1));

list.removeElementAt(1);

System.out.println("Removed element: 30");

System.out.println("List is: "+list);

}

}

OUTPUT:

C:\Program Files\Java\jdk1.7.0\bin>java VectorEx

List is not empty.

List is: [20, 30, 10, Hello World!]

First element is: 20

Last element is: Hello World!

List size is: 4

Element at location 1: 30

Removed element: 30

List is: [20, 10, Hello World!]