Java Collections - PriorityQueue.comparator() Examples

[Last Updated: Nov 8, 2025]

Class:

java.util.PriorityQueue

Method:

public Comparator<? super E> comparator()

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.

Examples

package com.logicbig.example.priorityqueue;

import java.util.*;

public class ComparatorExample {

    public static void main(String... args) {
        PriorityQueue<Integer> pq = new PriorityQueue<>(Comparator.reverseOrder());
        Comparator<? super Integer> comparator = pq.comparator();
        List<Integer> list = new ArrayList<>(List.of(5, 3, 4, 2, 1));
        Collections.sort(list, comparator);
        System.out.println(list);
    }
}

Output

[5, 4, 3, 2, 1]

Java Collections - PriorityQueue.comparator() Examples

Class:

Method:

Examples

Output

See Also