java.util.Collections.synchronizedSet()方法的使用

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]