Java : Collection Framework : HashSet (Clear)

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https://www.youtube.com/watch?v=WrXc2mtLEj0&list=UUhwKlOVR041tngjerWxVccw 

HashSetExample.java

import java.util.HashSet;

/*
 * Example of clear() method.
 */
public class HashSetExample
{
    public static void main( String[] args )
    {
        HashSet<String> hashSet = new HashSet<String>();

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

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

        /*
         * Removes all of the elements from this set. The set will be empty
         * after this call returns.
         */
        hashSet.clear();;
        
        System.out.println("hashSet: " + hashSet + "\n");

    }
}

Output

hashSet: [Rohit, Dave, Phil, Peter, Virat]

hashSet: []

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

See also:

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