Remove all values from Java Hashtable example

/*
  Remove all values from Java Hashtable example
  This Java Example shows how to remove all values from Hashtable object or empty
  Hashtable or clear Hashtable using clear method.
*/
 
import java.util.Hashtable;
 
public class EmptyHashtableExample {
 
  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 all values or clear Hashtable use
      void clear method() of Hashtable class. Remove method removes all
      key value pairs contained in Hashtable.
    */
 
    ht.clear();
 
    System.out.println("Total key value pairs in Hashtable are : " + ht.size());
  }
}
 
/*
Output would be
Total key value pairs in Hashtable are : 0
*/