// -------------------------------------------------------
import java.util.*;

public class Primes {
  public static void main (String [] args) {
    Vector primes = new Vector();
    // vectors have an ordering
    primes.addElement(new Integer(2));
    primes.addElement(new Integer(3));
    primes.addElement(new Integer(5));
    primes.addElement(new Integer(7));
    // all elements don't have to be the same
    // (but they usually are!)
    primes.addElement(new Double(11.0));

    System.out.println("The size of the vector is " + primes.size());
    System.out.println("The 3rd object is " + ((Integer)primes.elementAt(3)).toString());
    System.out.println("contains 4 is " + primes.contains(new Integer(4)));
  }
}

// The size of the vector is 5
// The 3rd object is 7
// contains 4 is false