How to Get the Size of HashSet in Java

The example aims to get the size or number of elements stored in Java HashSet object.

Source Code

package com.beginner.examples;

import java.util.HashSet;

public class GetSizeOfHashSetExample {

	public static void main(String[] args) {

		// Create a HashSet object
		HashSet hSet = new HashSet();

		// Add elements
		hSet.add("A");
		hSet.add("B");
		hSet.add("C");
		hSet.add("D");
		
		//Use the size() method in the HashSet class to get the total number of elements
		int size = hSet.size();
		
		System.out.println("Total number of elements:"+size);

	}

}

Output:

Total number of elements:4

References

Imported packages in Java documentation:

HashSet