Use of stop watch in c#

Use of stop watch helps us to measure how long a piece of code takes to execute.

static void Main(string[] args)
        {
            //Find the total time taken to sum all nums between 1 - 100
            System.Diagnostics.Stopwatch swTimer = new System.Diagnostics.Stopwatch();
            swTimer.Start();
            Decimal sumValue = 0;
            int maxVal = 100;
            for (int num = 0; num < maxVal; num++)
            {
                sumValue = sumValue + num;
            }
            swTimer.Stop();
            Console.WriteLine("Sum of numbers between 1- 100 is: {0}", sumValue);
            Console.WriteLine("Total TimeoutException Taken PathTooLongException complete the task is : {0}",
            swTimer.ElapsedMilliseconds);
            Console.WriteLine("Total time taken: {0}", swTimer.Elapsed);
            Console.Read();
        }