Java.util.EnumMap.clear() Method

Description

The java.util.EnumMap.clear() method removes all mappings from this map.

Declaration

Following is the declaration for java.util.EnumMap.clear() method

public void clear()

Parameters

• NA

Return Value

This method does not return any value.

Exception

• NA

Example

The following example shows the usage of java.util.EnumMap.clear() method.

package com.tutorialspoint;

import java.util.EnumMap;

public class EnumMapDemo {
   
   // create an enum
   public enum Numbers{ONE, TWO, THREE, FOUR, FIVE}; 

   public static void main(String[] args) {
      EnumMap<Numbers,String> map = 
              new EnumMap<Numbers,String>(Numbers.class);

      // associate values in map
      map.put(Numbers.ONE, "1");
      map.put(Numbers.TWO, "2");
      map.put(Numbers.THREE,"3");
      map.put(Numbers.FOUR, "4");
      
      // print the whole map
      System.out.println(map); 
      
      // clear the mappings
      map.clear();
      
      // print the map again
      System.out.println(map);
      
   }
}

Let us compile and run the above program, this will produce the following result:

{ONE=1, TWO=2, THREE=3, FOUR=4}
{}