PriorityQueue comparator() in Java

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

Syntax:

Comparator<? super K> java.util.PriorityQueue.comparator()

This method returns the comparator used to order the elements in this queue, or null if this queue is sorted according to the natural ordering of its elements.

Parameters: NA

Returns: the comparator used to order this queue, or null if this queue is sorted according to the natural ordering of its elements.

Exceptions: NA

Approach

Java

import java.util.PriorityQueue;

public class PriorityQueuecomparator {
    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.comparator());

    }
}

Output:

null