Remove value from Java Hashtable example

/*
  Remove value from Java Hashtable example
  This Java Example shows how to remove a key value pair from Hashtable object using
  remove method.
*/
 
import java.util.Enumeration;
import java.util.Hashtable;
 
public class RemoveValueFromHashtableExample {
 
  public static void main(String[] args) {
 
    //create Hashtable object
    Hashtable ht = new Hashtable();
 
    //add key value pairs to Hashtable
    ht.put("1","One");
    ht.put("2","Two");
    ht.put("3","Three");
 
    /*
      To remove a key value pair from Hashtable use
      Object remove(Object key) method of Hashtable class.
      It returns either the value mapped with the key or null if no value
      was mapped.     
    */
 
    Object obj = ht.remove("2");
    System.out.println(obj + " Removed from Hashtable");
 
    //print remaining Hashtable values
    Enumeration e = ht.elements();
 
    //iterate through Hashtable values Enumeration
    while(e.hasMoreElements())
      System.out.println(e.nextElement());
  }
}
 
/*
Output would be
Two Removed from Hashtable
Three
One
*/