Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://www.geeksforgeeks.org/java/sortedset-isempty-method-in-java-with-examples/ below:

SortedSet isEmpty() method in Java with Examples

Last Updated : 12 Jul, 2025

The

method is used to check if a SortedSet is empty or not. It returns True if the SortedSet is empty otherwise it returns False.

boolean isEmpty()

This method does not take any parameter.

The method returns True if the SortedSet is empty else returns False.

: The isEmpty() method in

is inherited from the

in Java. Below program illustrate the java.util.SortedSet.isEmpty() method:

// Java code to illustrate isEmpty()

import java.io.*;
import java.util.*;

public class SortedSetDemo {
    public static void main(String args[])
    {
        // Creating an empty Set
        SortedSet<String> set
            = new TreeSet<String>();

        // 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);

        // Check for the empty set
        System.out.println("Is the set empty? "
                           + set.isEmpty());

        // Clearing the set using clear() method
        set.clear();

        // Again Checking for the empty set
        System.out.println("Is the set empty? "
                           + set.isEmpty());
    }
}

Set: [4, Geeks, To, Welcome]
Is the set empty? false
Is the set empty? true

:

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4