public void Sort()
        {
            int temp;
            int upper = arrOfNumbers.upper;

            for (int outer = upper; outer > 1; outer--)
            {
                for (int inner = 0; inner < outer; inner++)
                {
                    if (arrOfNumbers.NumArray[inner] > arrOfNumbers.NumArray[inner + 1])
                    {
                        temp = arrOfNumbers.NumArray[inner];
                        arrOfNumbers.NumArray[inner]     = arrOfNumbers.NumArray[inner + 1];
                        arrOfNumbers.NumArray[inner + 1] = temp;
                    }
                    arrOfNumbers.DisplayElements();
                    Console.WriteLine();
                }
            }
        }