/* Studying HashSet */

import java.util.*;

public class HashSetDemo

{

public static void main(String args[])

{

HashSet <Object> hs = new HashSet();

MyOwnClass ob1 = new MyOwnClass();

MyOwnClass ob2 = new MyOwnClass("Switzerland",25);

String name1 = "Santhosh";

String name2 = "Unnikrishnan";

Integer num1 = new Integer(10);

Integer num2 = new Integer(20);

Integer num3 = new Integer(30);

hs.add(ob1);

hs.add(ob2);

hs.add(name1);

hs.add(name2);

hs.add(num1);

hs.add(num2);

hs.add(num3);

System.out.println("Contents of HashSet ");

System.out.println(hs);

Iterator <Object> itr = hs.iterator();

System.out.println("Contents of HashSet using Iterator" );

while(itr.hasNext())

{

System.out.println(itr.next());

}

}

}