HashSet

This class implements Set interface and supported by a hash table. It does not maintain the order of elements in collection. A collection that contains no duplicate elements.

package collection.demos;



import java.util.HashSet;



public class HashSetDemo {

    public static void main(String[] args) {

        HashSet<String> hs=new HashSet<String>();

        hs.add("a");

        hs.add("b");

        hs.add("c");

        hs.add("d");

        hs.add("a");

        hs.add("d");

        hs.add("a");

        hs.add("d");

        hs.add("a");

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

    }

}

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