Write a method in the HeapIntPriorityQueue class called toArray that returns the elements of the queue as a filled array. The order of the elements in the array is not important as long as all elements from the queue are present in the array, with no extra empty slots before or afterward.

This is a partial class problem. Submit code that will become part of an existing Java class as described. You do not need to write the complete class, just the portion described in the problem.