Get Synchronized Map from Java HashMap example

This java example shows how to get a synchronized Map from Java HashMap using synchronizedMap method of Collections class.

import java.util.HashMap;
import java.util.Collections;
import java.util.Map;

public class GetSynchronizedMapFromHashMapExample {

 public static void main(String[] args) {

  // create HashMap object

  HashMap hashMap = new HashMap();

  /**
   * Java HashMap is NOT synchronized. To get synchronized Map from
   * HashMap use static void synchronizedMap(Map map) method of
   * Collections class.
   **/

  Map map = Collections.synchronizedMap(hashMap);

  /**
   * Use this map object to prevent any unsynchronized access to original
   * HashMap object.
   **/

 }
}