Set size() method in Java with Example (original) (raw)

Last Updated : 26 Jul, 2024

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

**Syntax:

int size()

**Parameters: This method does not take 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 `

// Java code to illustrate Set.size() method

import java.util.*;

public class SetDemo { public static void main(String args[]) { // Creating an empty Set Set set = new HashSet();

    // Use add() method to add elements into the Set
    set.add("Welcome");
    set.add("To");
    set.add("Geeks");
    set.add("4");
    set.add("Geeks");

    // 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());
}

}

Output

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

**Reference:

https://docs.oracle.com/javase/7/docs/api/java/util/Set.html#size()

Set size() method in Java with Example (original) (raw)

Similar Reads