Simple C # Socket programming

servers, server code.

Connect using socket sockets.

1 using System;
2 using System.Net;
3 using System.Net.Sockets;
4 using System.IO;
5
6 Publi C Class Echoserver
7 {
8//entry Point of the main method.
9 public static void main ()
{
One//tcp Listener is listening on the given port
Int32 port = 1234;
\
//ipaddress is CONNETCT IP address//ipaddress addr = Ipaddress.parse ("127.0.0.1");
IPAddress ipaddress = dns.resolve ("localhost"). ADDRESSLIST[0];

TcpListener tcplistener = new TcpListener (ipaddress,port);
Tcplistener.start ()
Cons Ole. WriteLine ("Server started");
//accepts A new connection
Socket socketforclient = Tcplistener.acceptsocket ();
//streamwri ter and StreamReader Classes for reading and writing the "Data to and" from.
//the server reads the meassage sent by the Client, converts it to upper case and sends it back to the client.< br>//lastly Close all thE streams.　　　　　　　　
Try
{
socketforclient.connected)
{
while (true)
31 {
Console.WriteLine ("Client Connected");
NetworkStream NetworkStream = new NetworkStream (socketforclient);
StreamWriter streamwriter = new StreamWriter (NetworkStream);
StreamReader StreamReader = new StreamReader (NetworkStream);
String line = StreamReader.ReadLine ();
Notoginseng Console.WriteLine ("Read:" +line);
Line=line. ToUpper () + "!";
Streamwriter.writeline (line);
Console.WriteLine ("wrote:" +line);
StreamWriter.Flush ();
42}
43}
Socketforclient.close ();
Console.WriteLine ("Exiting");
46}
catch (Exception e)
, {
Console.WriteLine (e.tostring ());
}
I}
'