public class TestMap2
{
   public static void main(String[] args)
   {
      HashMap M = new HashMap();
      Integer r;

      Iterable<String> it1;


      r = M.put("A", 124); 
      System.out.println(M);
      r = M.put("B", 243); 
      System.out.println(M);
      r = M.put("C", 273); 
      System.out.println(M);
      r = M.put("D", 172);
      System.out.println(M);
      r = M.put("E", 111);
      System.out.println(M);

      System.out.print("Map after 5 insertions >> ");
      System.out.println(M);
      System.out.println();


      r = M.get("D");
      System.out.println("key = D , value = " + r);
      System.out.println();

      it1 = M.keySet();
      System.out.println("keySet():");
      System.out.println(it1);
      System.out.println();

      M.remove("D");
      System.out.print("After delete `D'>> ");
      System.out.println(M);

      System.out.println();
   }
}