Since the book was first published, Microsoft has created a Stopwatch
class that serves the same purpose as the Timing class discussed in 
Chapter 1. The following code demonstrates how to use the Stopwatch class
to perform timing tests on code. For more information on the Stopwatch 
class, go to: 

http://msdn.microsoft.com/en-us/library/system.diagnostics.stopwatch.aspx

using System;
using System.Collections;
using System.Linq;
using System.Text;
using System.Diagnostics;

namespace chapter1
{

    class chapter1
    {
        static void Main(string[] args)
        {
            int[] nums = new int[100000];
            BuildArray(nums);
            Stopwatch sw = new Stopwatch();
            sw.Start();
            DisplayNums(nums);
            sw.Stop();
            Console.WriteLine();
            Console.WriteLine("Time: " + sw.Elapsed.ToString());
            Console.ReadKey();
        }
        static void BuildArray(int[] arr)
        {
            for (int i = 0; i < 100000; i++)
                arr[i] = i;
        }
        static void DisplayNums(int[] arr)
        {
            for (int i = 0; i < 100000; i++)
                Console.Write(arr[i] + " ");
        }
    }
}