import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

import org.newdawn.slick.AppGameContainer;
import org.newdawn.slick.BasicGame;
import org.newdawn.slick.GameContainer;
import org.newdawn.slick.Graphics;
import org.newdawn.slick.SlickException;
   

public class Game extends BasicGame {
  public Game(String title) { super(title); }
   
  static String Message;
  static int port = 65534;
  static String line;
  static DataInputStream in;
  static DataOutputStream out;
  public static void main(String[] args) throws SlickException, IOException
  {
   AppGameContainer app = new AppGameContainer(new Game("Test Game"));
   app.setDisplayMode(1440, 900, false);
   app.start();
  }
   
  @Override
  public void render(GameContainer container, Graphics g)    throws SlickException
  {
   g.drawString("Message : "+line, 0, 20);
  }
   
  @Override
  public void init(GameContainer container) throws SlickException
  {
   try  
   {
   ServerSocket ss = new ServerSocket(port);
   Socket socket = ss.accept();
   System.out.println("Client connected!");
   InputStream sin = null;
   sin = socket.getInputStream();
   OutputStream sout = null;
   sout = socket.getOutputStream();
   in = new DataInputStream(sin);
   out = new DataOutputStream(sout);
   line = null;
   }
   catch (IOException e)
   {
    e.printStackTrace();
   }
  }
   
  @Override
  public void update(GameContainer container, int delta) throws SlickException  
  {
   try {
    line = in.readUTF();
   } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }  
  }
}

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

public class Client {
  public static void main(String[] ar)
  {
   int serverPort = 65534;  
   String address = "127.0.0.1";  
   try  
   {
    InetAddress ipAddress = InetAddress.getByName(address);  
    System.out.println("Any of you heard of a socket with IP address " + address + " and port " + serverPort + "?");
    Socket socket = new Socket(ipAddress, serverPort);
    System.out.println("Yes! I just got hold of the program.");
     
    InputStream sin = socket.getInputStream();
    OutputStream sout = socket.getOutputStream();
    DataInputStream in = new DataInputStream(sin);
    DataOutputStream out = new DataOutputStream(sout);
     
    BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
     
    String line = null;
    System.out.println("Type in something and press enter. Will send it to the server and tell ya what it thinks.");
    System.out.println();
    while (true)  
    {
     line = keyboard.readLine();       
     System.out.println("Sending this line to the server...");
     out.writeUTF(line);  
     out.flush();
     line = in.readUTF();  
     System.out.println("The server was very polite. It sent me this : " + line);
     System.out.println("Looks like the server is pleased with us. Go ahead and enter more lines.");
     System.out.println();
    }
   }  
   catch (Exception x)
   {
    x.printStackTrace();
   }
  }
}