package com.;

import java.util.*;

public class CollectionsDemo {

   public static void main(String[] args) {

      // create set

      Set<String> set = new HashSet<String>();

      // populate the set

      set.add("TP");

      set.add("IS");

      set.add("FOR");

      set.add("TECHIES");

      // create a synchronized set

      Set<String> synset = Collections.synchronizedSet(set);

      System.out.println("Synchronized set is :"+synset);

   }

}

Synchronized set is :[FOR, IS, TECHIES, TP]