Basic Networking

import java****.*;
import java.net.*;

public class Client {

    Socket requestSocket;
    ObjectOutputStream out;
    ObjectInputStream in;
    String message;


    void run() {
        try {
            requestSocket = new Socket("localhost", 2004);
            System.out.println("Connected to localhost in port 2004");
            out = new ObjectOutputStream(requestSocket.getOutputStream());
            out.flush();
            in = new ObjectInputStream(requestSocket.getInputStream());
        } catch (UnknownHostException unknownHost) {
            System.err.println("You are trying to connect to an unknown host!");
        } catch (IOException ioException) {
            ioException.printStackTrace();
        } finally {
            try {
                in.close();
                out.close();
                requestSocket.close();
            } catch (IOException ioException) {
                ioException.printStackTrace();
            }
        }
    }

    public static void main(String args[]) {
        Client client = new Client();
        client.run();
    }
}

import java****.*;
import java.net.*;
import java.util.logging.*;

public class Server {

    ServerSocket providerSocket;
    Socket connection = null;
    ObjectOutputStream out;
    ObjectInputStream in;
    static final Logger log = Logger.getLogger(Server.class.getName());


    void run() {
        try {
            providerSocket = new ServerSocket(2004, 10);
            System.out.println("Waiting for connection");
            connection = providerSocket.accept();
            out = new ObjectOutputStream(connection.getOutputStream());
            out.flush();
            in = new ObjectInputStream(connection.getInputStream());
            log.info("User Connected.");
        } catch (IOException ioException) {
            ioException.printStackTrace();
        } finally {
            try {
                in.close();
                out.close();
                providerSocket.close();
            } catch (IOException ioException) {
                ioException.printStackTrace();
            }
        }
    }

    public static void main(String args[]) {
        Server server = new Server();
        while (true) {
            server.run();
        }
    }
}