Please help: DataInputStream doesn't return response for remote device

Question

Hi all,
Please advise what is my mistake.
I am about to send a command to and get respond from my embedded kit (Arduino Wiznet Wifi Kit)
I can send command and get respond through a Telnet.
But i can only send command but not getting respond if i am about to write a java program to do the same thing with socket programming.
Below is my code, please advise for my mistake.
Many thanks!
public static void startTCPCommunication(String ip) throws UnknownHostException, IOException{
     InetAddress thoseIp = InetAddress.getByName(ip);
     // IO streams
     DataOutputStream toServer;
     DataInputStream fromServer;
     String entered=""; // Declare & initialize a String to hold input.
     Scanner input=new Scanner(System.in); // Decl. & init. a Scanner.
     try {
          System.out.println("Socket created");
          Socket socket = new Socket(ip, 5000);
          // Create an input stream to receive data from the server
          fromServer = new DataInputStream(socket.getInputStream());
          // Create an output stream to send data to the server
          toServer = new DataOutputStream(socket.getOutputStream());
          while(true){
               System.out.println("Please enter : ");
               entered=input.nextLine(); // Get what the user types.
               // Then say something trollish and use their name.
               System.out.println("You have entered : " + entered + "!");
               // Send the command to the server
               toServer.writeUTF(entered);
               System.out.println("Done with Send");
// Get the response from server
               String response = fromServer.readUTF();
               System.out.println("Retruned : " + response);
     catch (IOException ex) {
     System.out.println("Unable to create socket.");
The returned result only reaches System.out.println("Done with Send");
The function stucked and not going to loop for second time.
Please advise how can i modify my code and pin point my mistake please.
Thanks a lot!

Answer 1

                   // Send the command to the server
                   toServer.writeUTF(entered);
                   System.out.println("Done with Send");
// Get the response from server
                   String response = fromServer.readUTF();
                   System.out.println("Retruned : " + response);Check the Javadoc. writeUTF() doesn't send anything a Telnet server will understand, and a Telnet doesn't send anything that readUTF() will understand. They only understand each other. Use write(), and append a newline.