java.util.PriorityQueue.size() Method

Advertisements


Description

The size() method is used to return the number of elements in this collection.

Declaration

Following is the declaration for java.util.PriorityQueue.size() method.

public int size()

Parameters

  • NA

Return Value

  • The method call returns the number of elements in this collection

Exception

  • NA

Example

The following example shows the usage of java.util.PriorityQueue.size()

package com.tutorialspoint;

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
      for ( int i = 3; i  <  10; i++ ){  
         prq.add (new Integer (i)) ; 
      }
      
      System.out.println ( "Size of the queue is: "+ prq.size());
      
      System.out.println ( "Priority queue values are: "+ prq);
   }
}

Let us compile and run the above program, this will produce the following result.

Size of the queue is: 7
Priority queue values are: [3, 4, 5, 6, 7, 8, 9]



Advertisements
Advertisements