import java.applet.*;
import java.awt.*;
import java.io.*;
import java.net.*;
import netscape.javascript.JSObject;

public class ChatClient2 extends Applet {
  public static final int	PORT = 2000;
  Socket s;
  DataInputStream in;
  PrintStream out;
  StreamListener2 listener;
  String output_name = "form1.output";
  String user_name = "some_user";
  public void init () {
    String value;
    if ((value = getParameter ("output")) != null) output_name = value;
    if ((value = getParameter ("user")) != null) user_name = value;
    try {
      s = new Socket (this.getCodeBase().getHost(), PORT);
      in = new DataInputStream (s.getInputStream ());
      out = new PrintStream (s.getOutputStream ());
      listener = new StreamListener2 (in, output_name, this);
    }
    catch (IOException e) { this.showStatus (e.toString ()); }
  }
  public void sendMessage (String msg) { out.println (user_name + ": " + msg); }
  public void setUser (String user) { user_name = user; }
}

class StreamListener2 extends Thread {
  DataInputStream in;
  String output_name;
  Applet appl;
  public StreamListener2 (DataInputStream in, String output_name, Applet appl) {
    this.in = in;
    this.output_name = output_name;
    this.appl = appl;
    this.start ();
  }
  public void run () {
    JSObject win = JSObject.getWindow (appl);
    String line;
    try {
      for (;;) {
        line = in.readLine ();
        if (line == null) break;
        win.eval ("document." + output_name + ".value += \"" + line + "\\n\"");
      }
    }
    catch (IOException e) {
      win.eval ("document." + output_name + ".value += \"" + e.toString () + "\\n\"");
    }
    finally {
      win.eval ("document." + output_name + ".value += \"Connection closed by server.\"");
    }
  }
}