Open In App
Related Articles

Set size() method in Java with Example

Improve Article
Save Article
Like Article

The java.util.Set.size() method is used to get the size of the Set or the number of elements present in the Set.


int size()

Parameters: This method does not takes any parameter.

Return Value: The method returns the size or the number of elements present in the Set.

Below program illustrate the java.util.Set.size() method:

// Java code to illustrate Set.size() method
import java.util.*;
public class SetDemo {
    public static void main(String args[])
        // Creating an empty Set
        Set<String> set = new HashSet<String>();
        // Use add() method to add elements into the Set
        // Displaying the Set
        System.out.println("Set: " + set);
        // Displaying the size of the Set
        System.out.println("The size of the set is: " + set.size());


Set: [4, Geeks, Welcome, To]
The size of the set is: 4


Feeling lost in the vast world of Backend Development? It's time for a change! Join our Java Backend Development - Live Course and embark on an exciting journey to master backend development efficiently and on schedule.
What We Offer:
  • Comprehensive Course
  • Expert Guidance for Efficient Learning
  • Hands-on Experience with Real-world Projects
  • Proven Track Record with 100,000+ Successful Geeks

Last Updated : 31 Dec, 2018
Like Article
Save Article
Similar Reads
Complete Tutorials