LinkedHashSet

This class implements Set and extends Set interface and supported by a hash table. It maintains the order of elements in collection.A collection that contains no duplicate elements. this implementation is not synchronized

package collection.demos;



import java.util.LinkedHashSet;



public class LinkedHashSetDemo {



    public static void main(String[] args) {

        LinkedHashSet hs = new LinkedHashSet();

        hs.add("a");

        hs.add("b");

        hs.add("c");

        hs.add("c");

        hs.add("d");

        hs.add("d");

        System.out.println("Elements : " + hs);

    }

}