code example for Java Socket Communication

Clientapp.java original file to implement client-side functionality:

Import java.net.*;
Import java.io.*;
Import java.lang.*;

public class ClientApp
{
public static void Main (String args[])
{
Try
{
Create communications and connect to the host rock
Socket csocket=new socket ("192.168.100.188", 8018);
Open the input/output stream for this socket
OutputStream Os=csocket.getoutputstream ();
DataInputStream is=new DataInputStream (Csocket.getinputstream ());

int C;
Boolean flag=true;

String Responseline;

while (flag)
{
Accept characters from standard input output and write as System
while ((C=system.in.read ())!=-1)
{
Os.write ((byte) c);
if (c== ' \ n ')
{
Os.flush ();
Block the program until the reply is received and display them on the standard output
Responseline=is.readline ();
SYSTEM.OUT.PRINTLN ("message is:" +responseline);
}
}
}
Os.close ();
Is.close ();
Csocket.close ();

}
catch (Exception e)
{
System.out.println ("Exception:" + e.getmessage ());
}
}
}


Serverapp.java original file that implements server-side functionality:

Import java.net.*;
Import java.io.*;

public class Serverapp
{
public static void Main (String args[])
{
Try
{
Boolean flag=true;
Socket Clientsocket=null;
String Inputline;
int C;

ServerSocket ssocket=new ServerSocket (8018);
System.out.println ("Server Listen On:" +ssocket.getlocalport ());

while (flag)
{
Clientsocket=ssocket.accept ();
DataInputStream is= New DataInputStream (New Bufferedinputstream (Clientsocket.getinputstream ()));
OutputStream Os=clientsocket.getoutputstream ();

while ((Inputline=is.readline ())!=null)
{
The server program terminates when the client enters the stop!
if (Inputline.equals ("Stop"))
{
Flag=false;
Break
}
Else
{
System.out.println (Inputline);

while ((C=system.in.read ())!=-1)
{
Os.write ((byte) c);
if (c== ' \ n ')
{
Os.flush (); Sending information to the client
Break
}
}
}


}
Is.close ();
Os.close ();
Clientsocket.close ();

}
Ssocket.close ();
}
catch (Exception e)
{
System.out.println ("Exception:" + e.getmessage ());
}
}
}