using System;
using System.Diagnostics;

class MainClass {
    static void Main(string[] args) {
        FileVersionInfo info = FileVersionInfo.GetVersionInfo("c:a.txt");

        Console.WriteLine("Company Name: " + info.CompanyName);
    }
}
           
          

   


using System;
using System.Diagnostics;

class MainClass {
    static void Main(string[] args) {
        FileVersionInfo info = FileVersionInfo.GetVersionInfo("c:a.txt");

        Console.WriteLine("Product Version: " + info.ProductVersion);
    }
}
           
          

   




using System;
using System.Diagnostics;

class MainClass {
    static void Main(string[] args) {
        FileVersionInfo info = FileVersionInfo.GetVersionInfo("c:a.txt");

        Console.WriteLine("Product Name: " + info.ProductName);
    }
}
           
          

   


using System;
using System.Diagnostics;

class MainClass {
    static void Main(string[] args) {
        FileVersionInfo info = FileVersionInfo.GetVersionInfo("c:a.txt");

        Console.WriteLine("Checking File: " + info.FileName);
    }
}
           
          

   



using System;
using System.IO;
using System.Windows.Forms;

class MainClass {
    static void Main(string[] args) {
        using (FileSystemWatcher watch = new FileSystemWatcher()) {
            watch.Path = Application.StartupPath;
            watch.Filter = "*.*";
            watch.IncludeSubdirectories = true;

            // Attach the event handler.
            watch.Created += new FileSystemEventHandler(OnCreatedOrDeleted);
            watch.Deleted += new FileSystemEventHandler(OnCreatedOrDeleted);
            watch.EnableRaisingEvents = true;

            Console.WriteLine("Press Enter to create a  file.");
            Console.ReadLine();

            if (File.Exists("test.bin")) {
                File.Delete("test.bin");
            }

            // Create test.bin.
            using (FileStream fs = new FileStream("test.bin", FileMode.Create)) {
                // Do something.
            }

            Console.WriteLine("Press Enter to terminate the application.");
            Console.ReadLine();
        }
    }

    private static void OnCreatedOrDeleted(object sender, FileSystemEventArgs e) {
        Console.WriteLine("	NOTIFICATION: " + e.FullPath + "' was " + e.ChangeType.ToString());
        Console.WriteLine();
    }
}
           
          

   


using System;
using System.IO;

public class Program {
    static void Main(string[] args) {
        FileSystemWatcher watcher = new FileSystemWatcher();
        try {
            watcher.Path = @"C:MyFolder";
        } catch (ArgumentException ex) {
            Console.WriteLine(ex.Message);
            return;
        }

        watcher.NotifyFilter = NotifyFilters.LastAccess
            | NotifyFilters.LastWrite
            | NotifyFilters.FileName
            | NotifyFilters.DirectoryName;

        watcher.Filter = "*.txt";

        watcher.Changed += new FileSystemEventHandler(OnChanged);
        watcher.Created += new FileSystemEventHandler(OnChanged);
        watcher.Deleted += new FileSystemEventHandler(OnChanged);
        watcher.Renamed += new RenamedEventHandler(OnRenamed);
        watcher.EnableRaisingEvents = true;

        Console.WriteLine(@"Press 'q' to quit app.");
        while (Console.Read() != 'q') ;
    }
    private static void OnChanged(object source, FileSystemEventArgs e) {
        Console.WriteLine("File: {0} {1}!", e.FullPath, e.ChangeType);
    }

    private static void OnRenamed(object source, RenamedEventArgs e) {
        Console.WriteLine("File: {0} renamed to
{1}", e.OldFullPath, e.FullPath);
    }
}


           
          

   
 


using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

class Program {
    static void Main(string[] args) {
        byte[] byData;
        char[] charData;

        try {
            FileStream aFile = new FileStream("Temp.txt", FileMode.Create);
            charData = "www.kutayzorlu.com/java2s/com".ToCharArray();
            byData = new byte[charData.Length];
            Encoder e = Encoding.UTF8.GetEncoder();
            e.GetBytes(charData, 0, charData.Length, byData, 0, true);

            aFile.Seek(0, SeekOrigin.Begin);
            aFile.Write(byData, 0, byData.Length);
        } catch (IOException ex) {
            Console.WriteLine(ex.ToString());
            return;
        }
    }
}