Java Collection Tutorial - Java PriorityQueue(int initialCapacity, Comparator <? super E > comparator) Constructor

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Syntax

PriorityQueue(int initialCapacity, Comparator <? super E > comparator) constructor from PriorityQueue has the following syntax.

public PriorityQueue(int initialCapacity,    Comparator <? super E> comparator)

Example

In the following code shows how to use PriorityQueue.PriorityQueue(int initialCapacity, Comparator <? super E > comparator) constructor.

/*  w w  w  .j  a va  2 s. c o  m*/

import java.util.Collections;
import java.util.PriorityQueue;

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

      PriorityQueue<Integer>   prq = new PriorityQueue<Integer>(10,Collections.reverseOrder()) ; 
       
      for ( int i = 0; i < 10; i++ ){  
         prq.add (i) ; 
      }      
      System.out.println(prq) ; 
   }
}

The code above generates the following result.

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