Get Synchronized Set from HashSet in Java

The synchronizedSet() method returns a synchronized (thread-safe) sorted set backed by the specified sorted set.

First, create a HashSet and add elements −

Set<Integer> hs = new HashSet<Integer>(); hs.add(29); hs.add(879); hs.add(88); hs.add(788); hs.add(456);

Now, to get synchronized set, use the synchronizedSet() method −

Set s = Collections.synchronizedSet(hs);

The following is an example to get synchronized set from HashSet −

Example

 Live Demo

import java.util.*; public class Demo { public static void main(String args[]) { Set<Integer> hs = new HashSet<Integer>(); hs.add(29); hs.add(879); hs.add(88); hs.add(788); hs.add(456); Set s = Collections.synchronizedSet(hs); System.out.println("Synchronized Set = "+s); } }

Output

Synchronized Set = [788, 88, 456, 29, 879]