Question 21: Consider the Java code given below. Choose the correct o…

1import java.util.*;
2public class QueueTest{
3    public static void main(String[] args) {
4        PriorityQueue<String> queue1 = new PriorityQueue<String>();
5        queue1.add("Ganguly");
6        queue1.add("Cameron");
7        queue1.add("Unadkat");
8        queue1.add("Oliver");
9        queue1.add("Hayden");
10
11        ArrayDeque<String> queue2 = new ArrayDeque<String>();
12        while(queue1.size()>0) {
13            queue2.addFirst(queue1.poll()); //LINE-1
14        }
15        System.out.print(queue2);
16    }
17}