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

public class ClientReceiver {
   private boolean running = true;

   private Socket s = null;
   private BufferedReader in = null;

   private static String host = "127.0.0.1";
   private static int port = 2000;
   
   public static void main(String args[]) {
      if(args.length != 0) {
         host = args[0];
         if(args.length != 1) {
            port = Integer.parseInt(args[1]);
         }
      }
      new ClientReceiver();
   }

   public ClientReceiver() {
      try {
         s = new Socket(host, port);
         System.out.println("CONNECTED TO: " + host + " - ON PORT: " + port); 
         in = new BufferedReader(new InputStreamReader(s.getInputStream()));
         
         receiveAndShow();
      } catch (IOException ioe) {
         System.out.println("IOException generated: " + ioe);
      }
   }

   public void receiveAndShow() {
      String inputLine = "";
      while(running) {
         try {
            inputLine = in.readLine();
         } catch(NullPointerException npe) {
            System.out.println("NullPointerException generated: " + npe);
            killMe();
         } catch(IOException ioe) {
            System.out.println("IOException generated: " + ioe);
            killMe();
         }
         System.out.println("Meddelande: " + inputLine);
      }
   }

   public void killMe() {
      running = false;
      try {
         in.close();
         s.close();
      } catch(IOException ioe) {
         System.out.println("IOException generated: " + ioe);
      }
      System.exit(1);
   }
}