Java Examples - Use Enumeration to display HashTable

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Problem Description:

How to use enumeration to display contents of HashTable?

Solution:

Following example uses hasMoreElements & nestElement Methods of Enumeration Class to display the contents of the HashTable.

import java.util.Enumeration;
import java.util.Hashtable;

public class Main {
   public static void main(String[] args) {
      Hashtable ht = new Hashtable();
      ht.put("1", "One");
      ht.put("2", "Two");
      ht.put("3", "Three");
      Enumeration e = ht.elements();
      while(e.hasMoreElements()){
         System.out.println(e.nextElement());
      }
   }
}

Result:

The above code sample will produce the following result.

Three
Two
One


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