Remove all values from Java HashMap example

/*
  Remove all values from Java HashMap example
  This Java Example shows how to remove all values from HashMap object or empty
  HashMap or clear HashMap using clear method.
*/
 
import java.util.HashMap;
 
public class EmptyHashMapExample {
 
  public static void main(String[] args) {
 
    //create HashMap object
    HashMap hMap = new HashMap();
 
    //add key value pairs to HashMap
    hMap.put("1","One");
    hMap.put("2","Two");
    hMap.put("3","Three");
 
    /*
      To remove all values or clear HashMap use
      void clear method() of HashMap class. Clear method removes all
      key value pairs contained in HashMap.
    */
 
    hMap.clear();
 
    System.out.println("Total key value pairs in HashMap are : " + hMap.size());
  }
}
 
/*
Output would be
Total key value pairs in HashMap are : 0
*/