Java hashmap clear() method example.

Home Tutorial Java Core HashMap Java hashmap clear() method example.

Java hashmap clear() method example.
Posted on: April 6, 2011 at 12:00 AM

Java hashmap clear() method example.

This tutorial is based on clear() method of java HashMap class. It removes all values from HashMap.

Code:

HashMapRemoveAll.java

package net.roseindia.java;

import java.util.HashMap;

public class HashMapRemoveAll{

public static void main(String[] arr) {

/* Create a object of HfasHMap */

HashMap<Integer, String> obMap = new HashMap<Integer, String>();

/* Add values into HashMap */

obMap.put(new Integer(1), "AAAA");

obMap.put(new Integer(2), "BBBB");

obMap.put(new Integer(3), "CCCC");

obMap.put(new Integer(4), "DDDD");

obMap.put(new Integer(5), "EE");

/*Display Element before clear method */

System.out.println("HashMap : " + obMap);

/*Remove all values from HashMap*/

obMap.clear();

/*Display Element after clear method */

System.out.println("HashMap : "+obMap);m } }

Output :

HashMap : {1=AAAA, 2=BBBB, 3=CCCC, 4=DDDD, 5=EE}

HashMap : {}

Related Tags for Java hashmap clear() method example.:

«Previous Index Next»