Removing elements from Priority Queue

 

import java.util.Iterator;

import java.util.PriorityQueue;

class PriorityQueueRemove {

public static void main(String[] args) {

// creating our queue

PriorityQueue<Integer> pq = new PriorityQueue<>();

pq.add(12);

pq.add(13);

pq.add(14);

pq.add(15);

pq.add(16);

pq.add(17);

System.out.println("Queue pq before invokinh remove() method");

System.out.println("pq = " + pq);

pq.remove();

System.out.println("after invoking remove() method the queue is");

System.out.println("pq = " + pq);

System.out.println("Queue pq before invoking clear() method");

System.out.println("pq = " + pq);

pq.clear();

System.out.println("Queue after invoking clear() method");

System.out.println("pq = " + pq);

}

}