PriorityQueue iterator() in Java

iterator(): This method is available in java.util.PriorityQueue class of Java.

Syntax:

Iterator<K> java.util.PriorityQueue.iterator()

This method returns an iterator over the elements in this queue. The iterator does not return the elements in any particular order.

Parameters: NA

Returns: an iterator over the elements in this queue.

Exceptions: NA

Approach

Java

import java.util.Iterator;
import java.util.PriorityQueue;

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

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

        priorityQueue.add(12);
        priorityQueue.add(5);
        priorityQueue.add(10);
        priorityQueue.add(2);

        Iterator<Integer> iterator = priorityQueue.iterator();

        while (iterator.hasNext()) {
            System.out.print(iterator.next() + " ");

        }

    }
}

Output:

2 5 10 12