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Stream Tcp Client

/* C# Network Programming  by Richard Blum Publisher: Sybex  ISBN: 0782141765 */ using System; using System.IO; using System.Net; using System.Net.Sockets; using System.Text; public class StreamTcpClient {    public static void Main()    {       string data;       string input;       IPEndPoint ipep = new IPEndPoint(                       IPAddress.Parse("127.0.0.1"), 9050);       Socket server = new Socket(AddressFamily.InterNetwork,                      SocketType.Stream, ProtocolType.Tcp);       try       {          server.Connect(ipep);       } catch (SocketException e)       {          Console.WriteLine("Unable to connect to server.");          Console.WriteLine(e.ToString());          return;       }       NetworkStream ns = new NetworkStream(server);       StreamReader sr = new StreamReader(ns);       StreamWriter sw = new StreamWriter(ns);       data = sr.ReadLine();       Console.WriteLine(data);       while(true)       {          input = Console.ReadLine();          if (input == "exit")             break;          sw.WriteLine(input);          sw.Flush();          data = sr.ReadLine();          Console.WriteLine(data);       }       Console.WriteLine("Disconnecting from server...");       sr.Close();       sw.Close();       ns.Close();       server.Shutdown(SocketShutdown.Both);       server.Close();    } }