Java : Collection Framework : HashSet (Constructor Accepts Collection)

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HashSetExample.java

import java.util.HashSet;
import java.util.LinkedList;

/*
 * Example of HashSet(Collection<? extends E> c) Constructor.
 */
public class HashSetExample
{
    public static void main( String[] args )
    {
        LinkedList<Integer> linkedList = new LinkedList<Integer>();
        linkedList.add(1000);
        linkedList.add(2000);
        
        System.out.println("linkedList : "+linkedList);

        /*
         * Constructs a new set containing the elements in the specified
         * collection. The HashMap is created with default load factor (0.75)
         * and an initial capacity sufficient to contain the elements in the
         * specified collection.
         */
        HashSet<Integer> hashSet = new HashSet<Integer>(linkedList);

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

    }
}

Output

linkedList : [1000, 2000]
hashSet : [1000, 2000]

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

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