[NEED HELP] java: kenapa ngak mo nge-loop yah program nya?

[Braincode]

mo minta tolong neeh...

gw lagi bikin program client-server sederhana pake socket, di java.



user input kata kunci tertentu lalu server membalas dengan jawaban yang sudah tersedia, sampai QUIT dan program berhenti.

kata kunci:

MY NAME IS ____

TIME

JOKE TIME

QUIT

selain itu server akan balas I don't understand...



program terdiri dari 3 class (harus demikian): Server, Client, MyConnection (berisi perintah untuk Send dan Receive message)



masalahnya: seharusnya program terus berjalan sampai user memasukkan QUIT dan server balas Goodbye. tapi programnya mandek setelah satu input. ngak tau apa yang salah ??? (agak newbie juga di java)



berikut code nya...




Code:

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

public class Client {
public static void main(String[] args) throws IOException {
Socket hiSocket = null;

System.out.println("Client tries to connect to server...");

try {
hiSocket = new Socket("127.0.0.1", 4444);
} catch (UnknownHostException e) {
System.err.println("Don't know about host: laboratory.");
System.exit(1);
} catch (IOException e) {
System.err.println("Couldn't get I/O for the connection to: laboratory.");
System.exit(1);
}

System.out.println("Client connected!");

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

String fromUser;
String fromServer;

try {
MyConnection myco = new MyConnection(hiSocket);

do {
System.out.print("Enter Message: ");
fromUser = stdIn.readLine();
myco.Send(fromUser);

while((fromServer = myco.Receive()) != null)
System.out.println("Server: " + fromServer);
} while (!(fromServer.equals("Goodbye")));
} catch (Exception e) {
System.err.println("Connection to server error.");
System.exit(1);
}

stdIn.close();
hiSocket.close();
}
}


Code:

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

public class MyConnection {
Socket socket = null;
PrintWriter out = null;
BufferedReader in = null;

public MyConnection(Socket socket) throws Exception {
out = new PrintWriter(socket.getOutputStream(), true);

in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
}

public void Send(String msg) throws Exception {
out.println(msg);
out.flush();
}

public String Receive() throws Exception {
return in.readLine();
}
}


Code:

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

public class Server {
public static void main(String[] args) throws IOException {
ServerSocket serverSocket = null;
try {
serverSocket = new ServerSocket(4444);
} catch (IOException e) {
System.err.println("Could not listen on port: 4444.");
System.exit(1);
}

Socket clientSocket = null;
try {
clientSocket = serverSocket.accept();
} catch (IOException e) {
System.err.println("Accept failed.");
System.exit(1);
}

Date now = new Date();
String inputLine;

try {
MyConnection myco = new MyConnection(clientSocket);

while ((inputLine = myco.Receive()) != null) {
if (inputLine.startsWith("MY NAME IS")) {
String name;

name = inputLine.substring(11);
myco.Send("Hello, " + name);
} else if (inputLine.equals("TIME"))
myco.Send(now.toString());
else if (inputLine.equals("JOKE TIME")) {
myco.Send("Jamaican + Italian = Lil' Pastafarians");
myco.Send("Filipino + Hollander = Lil' Jalapenos");
myco.Send("French + Greek = Lil' Freeks");
myco.Send("Icelandian + Cuban = Lil' Ice cubes");
} else if (inputLine.equals("QUIT")) {
myco.Send("Goodbye");
} else
myco.Send("I can't understand what you're saying");
inputLine = "";
}
} catch (Exception e) {
System.err.println("Connection to client error.");
System.exit(1);
}

clientSocket.close();
serverSocket.close();
}
}

makasih sebelumnya buat yang bisa tolong...