PriorityQueue isEmpty() in Java

isEmpty(): This method is available in java.util.PriorityQueue class of Java.

Syntax:

boolean java.util.AbstractCollection.isEmpty()

This method returns true if this collection contains no elements.

Parameters: NA

Returns: true if this collection contains no elements.

Exceptions: NA

Approach

Java

import java.util.PriorityQueue;

public class PriorityQueueisEmpty {
    public static void main(String[] args) {

        PriorityQueue<Integer> priorityQueue = 
                    new PriorityQueue<Integer>();

        priorityQueue.add(12);
        priorityQueue.add(5);
        priorityQueue.add(10);
        priorityQueue.add(2);

        System.out.println(priorityQueue.isEmpty());

    }
}

Output:

false