How to Search key/value in Hashtable?

package com.JavaInterview.Programs;

import java.util.Hashtable;

import java.util.Map;

import java.util.Scanner;

/**

 * Search key/value Hashtable

 * 

 * @author:http://javainterviewprograms.blogspot.in/

 * 

 */

public class HashtableKeySearch {

 public static void main(String args[]) {

  // Create Hashtable Instance

  Hashtable<Integer, String> JipHT = new Hashtable<Integer, String>();

  // Adding element to Hashtable

  JipHT.put(1, "first");

  JipHT.put(2, "second");

  JipHT.put(3, "third");

  // Print the Hashtable

  System.out.println("Original Hashtable :" + JipHT);

  Scanner input = new Scanner(System.in);

  // Search element by Key

  System.out.println("Please enter the key that you want to search :");

  int key = input.nextInt();

  if (JipHT.containsKey(key)) {

   System.out.println("The Hashtable contains the key " + key + " with value : " + JipHT.get(key));

  } else {

   System.out.println("The Hashtable dosn't contains the key");

  }

  // Search Element by Value

  Scanner input1 = new Scanner(System.in);

  Integer key1 = null;

  System.out.println("Please enter the value that you want to search :");

  String str = input1.next();

  for (Map.Entry entry : JipHT.entrySet()) {

   if (str.equals(entry.getValue())) {

    key1 = (Integer) entry.getKey();

    break;

   }

  }

  System.out.println("The key value from Hashtable for value " + str + "is :" + key1);

  input.close();

  input1.close();

 }

}

Output :

Original Hashtable :{3=third, 2=second, 1=first}

Please enter the key that you want to search :

3

The Hashtable contains the key 3 with value : third

Please enter the value that you want to search :

first

The key value from Hashtable for value firstis :1