Monday, 22 December 2014

Java : Collection Framework : LinkedHashSet (Remove object using Iterator)

LinkedHashSetExample.java
import java.util.LinkedHashSet;
import java.util.Iterator;

/*
 * Example of Iterator remove() method.
 */
public class LinkedHashSetExample
{
    public static void main( String[] args )
    {
        LinkedHashSet<String> linkedHashSet = new LinkedHashSet<String>();

        linkedHashSet.add("Dave");
        linkedHashSet.add("Peter");
        linkedHashSet.add("Phil");
        linkedHashSet.add("Rohit");
        linkedHashSet.add("Virat");

        System.out.println("linkedHashSet : " + linkedHashSet + "\n");

        /*
         * Returns an iterator over the elements in this set. The elements are
         * returned in no particular order (unless this set is an instance of
         * some class that provides a guarantee).
         */

        Iterator<String> iterator = linkedHashSet.iterator();

        while( iterator.hasNext() )
        {
            iterator.next();
            /*
             * Removes from the list the last element that was returned by
             * next()
             */
            iterator.remove();
        }

        System.out.println("linkedHashSet : " + linkedHashSet + "\n");
    }
}

Output
linkedHashSet : [Dave, Peter, Phil, Rohit, Virat]

linkedHashSet : []
To Download LinkedHashSetDemoIteratorRemove Project Click the below link
https://sites.google.com/site/javaee4321/java-collections/LinkedHashSetDemoIteratorRemove.zip?attredirects=0&d=1

See also:
  • All JavaEE Viedos Playlist
  • All JavaEE Viedos
  • Servlets Tutorial
  • All Design Patterns Links
  • JDBC Tutorial
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