Showing posts with label iterate through Hashtable. Show all posts
Showing posts with label iterate through Hashtable. Show all posts

Thursday, 11 June 2015

How to iterate through Hashtable

import java.util.Hashtable;
import java.util.Set;

public class HashTableIterate {
   
    public static void main(String[] args) {
       
        Hashtable<Integer,String> ht = new Hashtable<Integer,String>();
       
        /*
         * Maps the specified key to the specified
         * value in this hashtable
         */
        ht.put(1, "java");
        ht.put(2, "jersey");
        ht.put(3, "spring");
        ht.put(4, "c");
        ht.put(5, "php");
       
        /*
         * Returns a Set view of the keys contained in this map.
         */
        Set<Integer> keys =ht.keySet();
       
        for (Integer key : keys) {
            System.out.println(" key = "+key+" value ="+ht.get(key));
        }
    }   
}

Output:

 key = 5 value =php

 key = 4 value =c

 key = 3 value =spring

 key = 2 value =jersey

 key = 1 value =java