import java.net.Socket;
import java.net.InetAddress;

import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.PrintWriter;
import java.io.IOException;

final class ServerListener extends Thread {
    final private BufferedReader fromServer;

    public ServerListener(BufferedReader fromServer) {
	this.fromServer = fromServer;
    }

    public void run() {
	String lineFromServer;
	try {
	    while ((lineFromServer = fromServer.readLine()) != null &&
		   !lineFromServer.equals("quit")) {
		System.out.println("Från servern: " + lineFromServer);
	    }
	}
	catch (IOException e) {
	    System.out.println("Undantag fångat: " + e);
	}
    }
} // class ServerListener

public class Client2 {
    public static final int PORT = 2000;
    public static void main(String[] args) throws IOException {
	InetAddress addr;
	if (args.length >= 1)
	    addr = InetAddress.getByName(args[0]);
	else
	    addr = InetAddress.getByName(null);

	Socket socket = new Socket(addr, PORT);
	System.out.println("Den nya socketen: " + socket);

        BufferedReader in = new BufferedReader(
	    new InputStreamReader(socket.getInputStream()));
	PrintWriter out = new PrintWriter(
	    new BufferedWriter(
                new OutputStreamWriter(
                    socket.getOutputStream())), true);
	// true: PrintWriter is line buffered

        BufferedReader kbd_reader = new BufferedReader(
	    new InputStreamReader(System.in));

	ServerListener t = new ServerListener(in);
	t.start();

	String buf;
	while (true) {
	    buf = kbd_reader.readLine();
	    System.out.println("Från tangentbordet: " + buf);
	    System.out.println("Till servern: " + buf);
	    out.println(buf);
	}
    } // main
} // class Client2