Iterate through HashMap in java pgm

Iterate through HashMap

import java.util.*;

public class Main

{

 public static void main(String[] args)

   {

      HashMap< String, String> hMap = new HashMap< String, String>();

      hMap.put("1", "1st");

      hMap.put("2", "2nd");

      hMap.put("3", "3rd");

      Collection cl = hMap.values();

      Iterator itr = cl.iterator();

      while (itr.hasNext())

     {

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

     }

   }

}