File time change

using System;//j ava2  s  .  c o m
using System.IO;

class Test 
{
    public static void Main() 
    {
        try 
        {
            string path = @"c:\Temp\MyTest.txt";

            if (!File.Exists(path)) 
            {
                File.Create(path);
            }
            File.SetLastAccessTime(path, new DateTime(2010,5,4));
            DateTime dt = File.GetLastAccessTime(path);
            Console.WriteLine("The last access time for this file was {0}.", dt);
            File.SetLastAccessTime(path, DateTime.Now);
            dt = File.GetLastAccessTime(path);
            Console.WriteLine("The last access time for this file was {0}.", dt);
        } 
        catch (Exception e) 
        {
            Console.WriteLine("The process failed: {0}", e.ToString());
        }
    }
}

using System;/*j  av a  2 s . com*/
using System.IO;

class Test 
{
    public static void Main() 
    {
            string path = @"c:\Temp\MyTest.txt";
            if (!File.Exists(path)) 
            {
                File.Create(path);
            } 
            else 
            {
                File.SetLastWriteTime(path, new DateTime(2010,4,3));
            }
            DateTime dt = File.GetLastWriteTime(path);
            Console.WriteLine("The last write time for this file was {0}.", dt);
      
            File.SetLastWriteTime(path, DateTime.Now);
            dt = File.GetLastWriteTime(path);
            Console.WriteLine("The last write time for this file was {0}.", dt);
    }
}