The Java.util.LinkedHashSet.isEmpty() method is used to check if a LinkedHashSet is empty or not. It returns True if the LinkedHashSet is empty otherwise it returns False.
Syntax:
Linked_Hash_Set.isEmpty()
Parameters: This method does not take any parameter
Return Value: The function returns True if the set is empty else returns False.
Below program illustrate the Java.util.LinkedHashSet.isEmpty() method:
Java
// Java code to illustrate isEmpty()import java.io.*;import java.util.LinkedHashSet;public class LinkedHashSetDemo { public static void main(String args[]) { // Creating an empty LinkedHashSet LinkedHashSet<String> set = new LinkedHashSet<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 LinkedHashSet System.out.println("LinkedHashSet: " + 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()); }} |
Output:
LinkedHashSet: [Welcome, To, Geeks, 4] Is the set empty: false Is the set empty: true
