4a Vector Class

// Vector Class Example

import java.util.*;
public class VectorDemo
{
  public static void main(String[] args)
  {
    Vector v = new Vector();
    int i = 10;
    Integer j = new Integer(20);
    String s = "Welcome";
    v.add(i);
    v.add(j);
    v.add(s);
    System.out.println("the elements of vector: " + v);
    System.out.println("The size of vector are: " + v.size());
    System.out.println("The elements at position 2 is: " + v.elementAt(2));
    System.out.println("The first element of vector is: " + v.firstElement());
    System.out.println("The last element of vector is: " + v.lastElement());
    v.removeElementAt(2);
    Enumeration e=v.elements();
    System.out.println("The elements of vector: " + v);
    while(e.hasMoreElements())
    {
      System.out.println("The elements are: " + e.nextElement());
    }
  }
}