java.util.PriorityQueue.comparator() 方法

package com.codingdict;

import java.util.*;

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

      // create priority queue
      PriorityQueue < Integer >  prq = new PriorityQueue < Integer > ();

      // insert values in the queue
      prq.add(6);  
      prq.add(9);
      prq.add(5);
      prq.add(64);
      prq.add(6);

      System.out.println("Priority queue values are: "+ prq);

      // create comparator
      Comparator comp = prq.comparator();

      System.out.println("Comparator value is: "+ comp);
   }
}