System IO C# by API

using System;
using System.IO;
class MainClass
{
    public static void Main(string[] args)
    {
        FileInfo file = new FileInfo("c:\\test.txt");    
        // Display directory information.
        DirectoryInfo dir = file.Directory;
        if (dir.Exists)
        {
            Console.Write("Directory created: ");
            Console.WriteLine(dir.CreationTime.ToString());
            Console.Write("Directory last updated: ");
            Console.WriteLine(dir.LastWriteTime.ToString());
            Console.Write("Directory last accessed: ");
            Console.WriteLine(dir.LastAccessTime.ToString());
        }
    
    }
}