Java Collections Java Java API
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]
|
|
