public static void testD(int seed)
        {
            string filename = "@mydataarray.dat";

            MyFileArray fileArray = new MyFileArray(filename, arrayLength, seed);

            using (fileArray.fs = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.ReadWrite))
            {
                Console.WriteLine("\n\n COUNTING SORT FILE ARRAY");
                Console.WriteLine(longLine);
                fileArray.Print(arrayLength);

                Console.WriteLine(longLine);
                Sort(fileArray);
                fileArray.Print(arrayLength);
            }

            filename = "@mydatalist.dat";

            MyFileList fileList = new MyFileList(filename, arrayLength, seed);

            using (fileList.fs = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.ReadWrite))
            {
                Console.WriteLine("\n\n COUNTING SORT FILE LIST ");
                Console.WriteLine(longLine);
                fileList.Print(arrayLength);

                Console.WriteLine(longLine);
                Sort(fileList);
                fileList.Print(arrayLength);
            }
        }
        public static void testArrayTimes(int seed)
        {
            int[] numElementsArray = { 12800, 25600, 51200, 102400, 204800, 409600 };

            foreach (int numberOfElements in numElementsArray)
            {
                Console.Write("\nElements: " + numberOfElements);
                MyDataArray dataArray = new MyDataArray(numberOfElements, seed);
                var         watch     = System.Diagnostics.Stopwatch.StartNew();
                Sort(dataArray);
                watch.Stop();
                Console.Write(" Data array time:" + watch.ElapsedMilliseconds);
                string      filename  = "@mydataarraytimes.dat";
                MyFileArray fileArray = new MyFileArray(filename, numberOfElements, seed);
                using (fileArray.fs = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.ReadWrite))
                {
                    watch = System.Diagnostics.Stopwatch.StartNew();
                    Sort(fileArray);
                    watch.Stop();
                    Console.Write(" File array:" + watch.ElapsedMilliseconds);
                }
            }
        }