// Java program to demonstrates the working of size()
import java.util.HashSet;

public class Geeks {
    public static void main(String[] args)
    {
        // Create a new HashSet
        HashSet<String> hs = new HashSet<>();

        // Add elements to the HashSet
        hs.add("Geek1");
        hs.add("Geek2");
        hs.add("Geek3");

        System.out.println("HashSet: " + hs);
      
        // print the size of the HashSet
        System.out.println("Size of HashSet: " + hs.size());

        // Add element in the HashSet
        hs.add("Geek4");

        System.out.println("Updated HashSet: " + hs);

        // print the size of the updated HashSet
        System.out.println("Size of Updated HashSet: "
                           + hs.size());

        hs.remove("Geek1");
        hs.remove("Geek3");
      
        System.out.println("HashSet after removal of elements: " + hs);

        // print the size of the HashSet after removal
        System.out.println("Size of HashSet after removal: "
                           + hs.size());
    }
}