ArrayedMinHeap280<Integer> heap = new ArrayedMinHeap280<Integer>(5);

        heap.insert(3);
        heap.insert(9);
        heap.insert(1);
        heap.insert(15);
        heap.insert(-5);

        System.out.println("Expected output of heap is: -5, 1, 3, 15, 9.");
        System.out.println("Output of heap is: " + heap);
        System.out.println();

        heap.removeItem();
        System.out.println("Expected root of heap is 1.");
        System.out.println("Root of heap is: " + heap.item());
        System.out.println("Output of heap is: " + heap);
        System.out.println();

        heap.removeItem();
        System.out.println("Expected root of heap is 3.");
        System.out.println("Root of heap is: " + heap.item());
        System.out.println("Output of heap is: " + heap);
        System.out.println();

        heap.removeItem();
        System.out.println("Expected root of heap is 9.");
        System.out.println("Root of heap is: " + heap.item());
        System.out.println("Output of heap is: " + heap);
        System.out.println();

        heap.removeItem();
        System.out.println("Expected root of heap is 15.");
        System.out.println("Root of heap is: " + heap.item());
        System.out.println("Output of heap is: " + heap);
        heap.removeItem();
        if (!heap.isEmpty())
        {
            System.out.println("Heap should be empty, but it is not.");
        }