CopyOnWriteArraySet - iterate using iterator, Enumeration and enhanced for loop program







CopyOnWriteArraySet - iterate using iterator, listIterator, Enumeration and enhanced for loop program.


import java.util.Collections;
import java.util.Enumeration;
import java.util.Iterator;
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>();
          copyOnWriteArraySet.add("ankit");
          copyOnWriteArraySet.add("javaMadeSoEasy");
          System.out.println("-------use iterator-------");
          Iterator<String> iterator = copyOnWriteArraySet.iterator();
          while (iterator.hasNext()) {
                 System.out.println(iterator.next());
          }
          System.out.println("-------use Enumeration-------");
          Enumeration<String> listEnum = Collections.enumeration(copyOnWriteArraySet);
          while (listEnum.hasMoreElements()) {
                 System.out.println(listEnum.nextElement());
          }
          System.out.println("-------use enhanced for loop-------");
          for (String string : copyOnWriteArraySet) {
                 System.out.println(string);
          }
   }
}
/*OUTPUT
-------use iterator-------
ankit
javaMadeSoEasy
-------use Enumeration-------
ankit
javaMadeSoEasy
-------use enhanced for loop-------
ankit
javaMadeSoEasy
*/


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CopyOnWriteArraySet - fail-safe or fail-fast iteration using iterator, Enumeration and enhanced for loop program


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