6.) Priority Queue (basic)

 Write a program to convert a priority queue to an array.

import java.util.PriorityQueue;

public class PriorityQueueToArray {

   public static void main(String[] args) {

      // Create a priority queue

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

     

      // Add elements to the queue

      pq.add("Apple");

      pq.add("Banana");

      pq.add("Grapes");

      pq.add("Orange");

     

      // Convert priority queue to an array

      String[] arr = pq.toArray(new String[pq.size()]);

     

      // Print the elements of the array

      for (String s : arr) {

         System.out.print(s + " ");

      }

   }

}