CopyOnWriteArraySet - isEmpty, size and clear methods program






CopyOnWriteArraySet - isEmpty, size and clear methods program.





import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
/** Copyright (c), AnkitMittal JavaMadeSoEasy.com */
public class CopyOnWriteArraySetTest {
   public static void main(String args[]) {
          Set<String> copyOnWriteArraySet = new CopyOnWriteArraySet<String>();
          System.out.println("--------add element ");
          copyOnWriteArraySet.add("ankit");
          copyOnWriteArraySet.add("mittal");
          copyOnWriteArraySet.add("javaMadeSoEasy");
          System.out.println("copyOnWriteArraySet = "+copyOnWriteArraySet);
          System.out.println("copyOnWriteArraySet.isEmpty() = "+copyOnWriteArraySet.isEmpty());
          System.out.println("\n--------clear list - remove all elements from set");
          copyOnWriteArraySet.clear();
         
          System.out.println("copyOnWriteArraySet.isEmpty() = "+copyOnWriteArraySet.isEmpty());
          System.out.println("copyOnWriteArraySet = "+copyOnWriteArraySet);
         
   }
}
/*OUTPUT
--------add element
copyOnWriteArraySet = [ankit, mittal, javaMadeSoEasy]
copyOnWriteArraySet.isEmpty() = false
--------clear list - remove all elements from set
copyOnWriteArraySet.isEmpty() = true
copyOnWriteArraySet = []
*/

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