从哈希表中删除所有值

import java.util.Hashtable;
/*
来 自*
 nowjava.com
*/

 

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");

 

    ht.clear();

   

    System.out.println("Total key value pairs in Hashtable are : " + ht.size());

  }

}