/**

* Example Client program using TCP.

*/

public class Tclient {

final static String serverIPname = "minnie.williams.org"; // server IP name

final static int serverPort = 3456; // server port number

public static void main(String args[]) {

java.net.Socket sock = null; // Socket object for communicating

java.io.PrintWriter pw = null; // socket output to server

java.io.BufferedReader br = null; // socket input from server

try {

sock = new java.net.Socket(serverIPname,serverPort); // create socket and connect

pw = new java.io.PrintWriter(sock.getOutputStream(), true); // create reader and writer

br = new java.io.BufferedReader(new java.io.InputStreamReader(sock.getInputStream()));

System.out.println("Connected to Server");

pw.println("Message from the client"); // send msg to the server

System.out.println("Sent message to server");

String answer = br.readLine(); // get data from the server

System.out.println("Response from the server >" + answer);

pw.close(); // close everything

br.close();

sock.close();

} catch (Throwable e) {

System.out.println("Error " + e.getMessage());

e.printStackTrace();

}

}

}

/**

* Example Server program using TCP.

*/

public class Tserver {

final static int serverPort = 3456; // server port number

public static void main(String args[]) {

java.net.ServerSocket sock = null; // original server socket

java.net.Socket clientSocket = null; // socket created by accept

java.io.PrintWriter pw = null; // socket output stream

java.io.BufferedReader br = null; // socket input stream

try {

sock = new java.net.ServerSocket(serverPort); // create socket and bind to port

System.out.println("waiting for client to connect");

clientSocket = sock.accept(); // wait for client to connect

System.out.println("client has connected");

pw = new java.io.PrintWriter(clientSocket.getOutputStream(),true);

br = new java.io.BufferedReader(

new java.io.InputStreamReader(clientSocket.getInputStream()));

String msg = br.readLine(); // read msg from client

System.out.println("Message from the client >" + msg);

pw.println("Got it!"); // send msg to client

pw.close(); // close everything

br.close();

clientSocket.close();

sock.close();

} catch (Throwable e) {

System.out.println("Error " + e.getMessage());

e.printStackTrace();

}

}

}