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Console Based Chat

Posted by Anil Sequeira Articles | Networking October 01, 2001
This is a article on how to create a simple console based chat application using socket connections.
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Description

Tools Used: Microsoft .NET Framework Beta 2 ,Text Editor.

Article: This is a article on how to create a  simple console based chat application using socket connections. It is a one to one based chat application .After compiling the serversocket1.cs and clientsocket1.cs files start the serversocket1 first .Once the server is started Open a new Dos Prompt and start the client . You can the pass messages between server and the client alternatively. The server and the client application  terminates when  the client types in byeor BYE . 

Source Code:

Source code for serversocket1.cs
// created on 9/21/2001 at 10:59 AM
using System ;
using System.Net.Sockets ;
using System.IO ;
public class ServerSocket1
{
public static void Main()
{
try
{
bool status = true ;
string servermessage = "" ;
string clientmessage = "" ;
TcpListener tcpListener =
new TcpListener(8100) ;
tcpListener.Start() ;
Console.WriteLine("Server Started") ;
Socket socketForClient = tcpListener.AcceptSocket() ;
Console.WriteLine("Client Connected") ;
NetworkStream networkStream =
new NetworkStream(socketForClient) ;
StreamWriter streamwriter =
new StreamWriter(networkStream) ;
StreamReader streamreader =
new StreamReader(networkStream) ;
while(status)
{
if(socketForClient.Connected)
{
servermessage = streamreader.ReadLine() ;
Console.WriteLine("Client:"+servermessage) ;
if((servermessage== "bye" ))
{
status =
false ;
streamreader.Close() ;
networkStream.Close() ;
streamwriter.Close() ;
return ;
}
Console.Write("Server:") ;
clientmessage = Console.ReadLine() ;
streamwriter.WriteLine(clientmessage) ;
streamwriter.Flush() ;
}
}
streamreader.Close() ;
networkStream.Close() ;
streamwriter.Close() ;
socketForClient.Close() ;
Console.WriteLine("Exiting") ;
}
catch(Exception e)
{
Console.WriteLine(e.ToString()) ;
}
}
}
// Source Code Ends
// Source Code for ClientSocket1.cs
// created on 9/21/2001 at 11:54 AM
using System ;
using System.Net.Sockets ;
using System.IO ;
public class ClientSocket1
{
static void Main(string[] args)
{
TcpClient socketForServer ;
bool status = true ;
try
{
socketForServer =
new TcpClient("localhost",8100) ;
Console.WriteLine("Connected to Server") ;
}
catch
{
Console.WriteLine("Failed to Connect to server{0}:999","localhost") ;
return ;
}
NetworkStream networkStream = socketForServer.GetStream() ;
StreamReader streamreader =
new StreamReader(networkStream) ;
StreamWriter streamwriter =
new StreamWriter(networkStream) ;
try
{
string clientmessage="" ;
string servermessage="" ;
while(status)
{
Console.Write("Client:") ;
clientmessage = Console.ReadLine() ;
if((clientmessage=="bye") || (clientmessage=="BYE"))
{
status =
false ;
streamwriter.WriteLine("bye") ;
streamwriter.Flush() ;
}
if((clientmessage!="bye") && (clientmessage!="BYE"))
{
streamwriter.WriteLine(clientmessage) ;
streamwriter.Flush() ;
servermessage = streamreader.ReadLine() ;
Console.WriteLine("Server:"+servermessage) ;
}
}
}
catch
{
Console.WriteLine("Exception reading from the server") ;
}
streamreader.Close() ;
networkStream.Close() ;
streamwriter.Close() ;
}

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