Java Program to count the number of elements in a priority queue

import java.util.*;
public class demo1 
{
 public static void main(String[] args) 
 {
  PriorityQueue<String> P_queue=new PriorityQueue<String>();  
  P_queue.add("C#");
  P_queue.add("C++");
  P_queue.add("Java");
  P_queue.add("Python");
  P_queue.add("Ruby");
  System.out.println("Priority Queue: "+P_queue);
  System.out.println("Size of the Priority Queue: " +P_queue.size());
 }
}