Experiment No 13 (Socket Programming) :Server Program

// A Java program for a Server

import java.net.*;

import java.io.*;

public class Server {

            //initialize socket and input stream

    private Socket          socket   = null;

    private ServerSocket    server   = null;

    private DataInputStream in       =  null;

 

    // constructor with port

    public Server(int port)

    {

        // starts server and waits for a connection

        try

        {

            server = new ServerSocket(port);

            System.out.println("Server started");

 

            System.out.println("Waiting for a client ...");

 

            socket = server.accept();

            System.out.println("Client accepted");

 

            // takes input from the client socket

            in = new DataInputStream(

                new BufferedInputStream(socket.getInputStream()));

 

            String line = "";

 

            // reads message from client until "Over" is sent

            while (!line.equals("Over"))

            {

                try

                {

                    line = in.readUTF();

                    System.out.println(line);

 

                }

                catch(IOException i)

                {

                    System.out.println(i);

                }

            }

            System.out.println("Closing connection");

 

            // close connection

            socket.close();

            in.close();

        }

        catch(IOException i)

        {

            System.out.println(i);

        }

    }

 

    public static void main(String args[])

    {

        Server server = new Server(5000);

    }

           

}

OUTPUT

Server started

Waiting for a client ...

Client accepted

hello

Over