Creating a Priority Queue and adding element into it and then iterating over the elements

 

import java.util.Iterator;

import java.util.PriorityQueue;

class PriorityQueueDemo {

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);

// iterating the queue using Iterator

Iterator itr = pq.iterator();

while (itr.hasNext()) {

System.out.println(itr.next());

}

}

}