Share on Google+Share on Google+

Example of entrySet method of HashMap.

Advertisement
In this tutorial you will learn about the entrySet method of HashMap class.

Example of entrySet method of HashMap.

In this example, we will introduce to you about the entySet method of HashMap. It returns a Set of all entries of HashMap.

Code

HashMapKeySet.java

package net.roseindia.java;

import java.util.HashMap;

import java.util.Set;

public class HashMapEntrySet {

public static void main(String[] arr) {

/* Create object of HashMap */

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

/* Strore value in HashMap */

obHashMap.put(new Integer(1), "AAA");

obHashMap.put(new Integer(2), "BBB");

obHashMap.put(new Integer(3), "CCC");

obHashMap.put(new Integer(4), "DDD");

obHashMap.put(new Integer(5), "EEE");

/* Create a set of keys of hashmap */

Set obEntrySet = obHashMap.entrySet();

System.out.println("Set of entries : " + obEntrySet); } }

Output :
Set of entries : [1=AAA, 2=BBB, 3=CCC, 4=DDD, 5=EEE]

Advertisements

Posted on: April 5, 2011 If you enjoyed this post then why not add us on Google+? Add us to your Circles

Share this Tutorial Follow us on Twitter, or add us on Facebook or Google Plus to keep you updated with the recent trends of Java and other open source platforms.