new to socket programming

[ambrositti li]

Hi, folks. Here is the partial spec of my first networking programming assignment.
GET: This message is sent from the client to the server, and contains the ASCII string GET followed by the newline character \n. On sending the GET message, the client waits for a return message from the server via the socket that connects them.
eg.
Client: GET
Server: GET: OK
A dog says woof
however, what i've got from the command line is like this:
Server: GET: OK
you see, the rest of the message(after the newline character) is missing. Could someone plz point me out what i did wrong. Thanx in advance.
below is the complete four classes i've come up so far and the text file(animalSoundData.txt) the server reads. it's all complied. please copy it to your own HDD and run it so you would know exactly what the problem is. thanx again!
P.S. i am sorry about the long post. please bear with me as i am desperately looking for the solution.
the server class

 import java.net.*;
 import java.io.*;
 
 public class animalSound{
 public static void main(String[] args)throws
 IOException{
 
 ServerSocket serverSocket = null;
 PrintWriter out = null;
 BufferedReader in = null;
 int port = 0;
 
 //ensure user provides one and only one command-line
 arguments, that is
 //the port number this server will be listening to.
 if(args.length != 1){
 System.err.println("Usage: java animalSound
 PortNumber");
 System.exit(-1);
 }else{
 port = Integer.parseInt(args[0]);
 }//end of else
 
 //try to create socket on the given port and relevant
 exception will be
 //thrown if the attempt fails
 try{
 serverSocket = new ServerSocket(port);
 }catch(Exception e){
 System.err.println("Could not listen on port: " +
 port);
 System.exit(1);
 }//end of catch
 
 //call the below object's loadData() method to read
 start-up data into
 //an extendable ArrayList
 AnimalSoundProtocol asp = new AnimalSoundProtocol();
 asp.loadData();
 
 //try to accept a connection from a client and
 relevant exceptions will be
 //thrown if the attempt fails
 Socket clientSocket = null;
 try{
 clientSocket = serverSocket.accept();
 }catch(IOException e){
 System.err.println("Accept failed.");
 System.exit(1);
 }//end of catch
 
 //get the client socket's output stream and opens a
 PrintWriter on it
 out = new PrintWriter(clientSocket.getOutputStream(),
 true);
 //get the client socket's input stream and opens a
 BufferedReader on it
 in = new BufferedReader(new
 InputStreamReader(clientSocket.getInputStream()));
 
 String inputLine, outputLine;
 
 while((inputLine = in.readLine()) != null){
 System.out.println ("the client input is " +
 inputLine);
 outputLine = asp.processInput(inputLine);
 System.out.println ("the processed result is " +
 outputLine);
 out.println(outputLine);
 
 if(outputLine.equals("END: OK"))
 break;
 }
 
 //close all relevant connections after the client has
 issued the END message
 out.close();
 in.close();
 clientSocket.close();
 serverSocket.close();
 
 }//end of main method
 }//end of animalSound class

the client class

 import java.net.*;
 import java.io.*;
 
 public class soundClient{
 public static void main(String[] args) throws
 IOException{
 
 String host = null;
 int port = 0;
 Socket clientSocket = null;
 PrintWriter out = null;
 BufferedReader in = null;
 
 //ensure user provides two and only two command-line
 arguments, that is
 //the host name and port number that the user wants to
 connect to.
 if(args.length != 2){
 System.err.println("Usage: java soundClient Host_name
 PortNumber");
 System.exit(-1);
 }else{
 host = args[0];
 port = Integer.parseInt(args[1]);
 }//end of else
 
 try{
 //try to create connection on user's designated host
 and port number,
 //relevant exceptions will be thrown if the attempt
 fails.
 clientSocket = new Socket(host, port);
 
 //get the socket's output stream and opens a
 PrintWriter on it
 out = new PrintWriter(clientSocket.getOutputStream(),
 true);
 
 //get the socket's input stream and opens a
 BufferedReader on it.
 in = new BufferedReader(new
 InputStreamReader(clientSocket.getInputStream()));
 
 }catch(UnknownHostException e){
 System.err.println("Don't know about host: " + host +
 ".");
 System.exit(-1);
 }catch(IOException e){
 System.err.println ("Couldn't get I/O for the
 connection to: " +
 host + ".");
 }//end of catch
 
 //buffered reader for reading client's messages from
 command-line
 BufferedReader stdIn = new BufferedReader
 (new InputStreamReader(System.in));
 String fromServer = null;
 
 String userInput;
 //String result = "";
 
 while((userInput = stdIn.readLine()) != null){
 
 //userInput = stdIn.readLine();
 System.out.println ("Client: " + userInput);
 //write user's message to the PrintWriter connected to
 the socket
 out.println(userInput);
 
 fromServer = in.readLine();
 System.out.println ("server output is " + fromServer);
 if(fromServer.equals("END: 0K"))
 {
 break;
 }else{
 System.out.println ("Server: " + fromServer);
 }
 }//end of while loop
 
 //close all relevant connections after the server has
 responded with
 //END: OK message
 out.close();
 in.close();
 stdIn.close();
 clientSocket.close();
 
 }//end of main method
 
 }//end of soundClient class

the protocol class

 import java.io.*;
 import java.util.*;
 
 public class AnimalSoundProtocol{
 //private static final int WAITING = 0;
 //private static final int
 
 private ArrayList animalSoundContainer;
 
 public AnimalSoundProtocol(){
 //the initial capacity can hold up to 15 pairs of
 animal's name and sound
 animalSoundContainer = new ArrayList(15);
 }//end of constructor
 
 //This method reads data from a text file, which stores them in the format
 //of animal's name:sound pair. It,then, encapulates the data in an
 //object of type Animal and then put the object in
 //extendable container animalSoundContainer of type Arrylist
 public void loadData(){
 String data;
 try {
 File f = new File("animalSoundData.txt");
 BufferedReader br = new BufferedReader(new
 FileReader(f));
 
 while((data=br.readLine()) != null){
 String[] pair = data.split(":");
 animalSoundContainer.add(new Animal(pair[0],pair[1]));
 }//end of while loop
 
 }catch(FileNotFoundException e){
 System.err.println("Couldn't find the designated text
 file");
 }catch(IOException e){
 System.err.println("Couldn't get I/O from this text
 file");
 }//end of catch
 
 }//end of loadData method
 
 public String processInput(String input){
 String result = null;
 Animal chosenAnimal = null;
 //if client's request is GET, the server returns the
 string "GET: OK",
 //followed by a newline character and then by a line
 providing a randomly
 //chosen name-sound pair ended with another newline
 character
 if(input.equals("GET")){
 chosenAnimal = chooseAnimal();
 result = "GET: OK\n" + "A " + chosenAnimal.getName() +
 " says " +
 chosenAnimal.getSound() + "\n";
 }else if(input.equals("END")){
 result = "END: OK";
 }
 return result;
 }//end of processInput method
 
 //this method returns a chosen Animal object from the
 ArrayList by a randomly
 //selected index
 private Animal chooseAnimal(){
 int index = (new
 Random()).nextInt(animalSoundContainer.size()-1);
 Animal a = (Animal)animalSoundContainer.get(index);
 return a;
 }//end of chooseAnimal method
 }

the helper class

 public class Animal{
 private String name;
 private String sound;
 
 public Animal(String name, String sound){
 this.name = name;
 this.sound = sound;
 }//end of constructor
 
 public String getName(){
 return name;
 }//end of getName
 
 public String getSound(){
 return sound;
 }
 }//end of Animal class

the content of text(animalSoundData.txt)file:
dog:woof
cat:miao
cow:moo
snake:hiss
bird:chirp
[ April 12, 2004: Message edited by: ambrositti li ]

[Stan James]

In the client, double check what's inside the loop "while((userInput = stdIn.readLine()) != null)" and what should maybe be outside the loop. That's a broad hint at one thing that may not actually be the problem. Lemme know if it helped!