Question

How to synchronized Set from HashSet in Java

Answer 1

package javaapplication1;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

public class JavaApplication1 {

    public static void main(String[] args) {
     
        HashSet hSet = new HashSet();
    
        hSet.add(new Integer("1"));
        hSet.add(new Integer("2"));
        hSet.add(new Integer("3"));
        hSet.add(new Integer("4"));
        hSet.add(new Integer("5"));
        
        Set set = Collections.synchronizedSet(hSet);
        
        System.out.println(set);
  }
}
 
/*

run:

[1, 2, 3, 4, 5]

*/

 

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