Send and Receive data from socket simultaneously

Hello,

I am working with an in-line barcode reader that receives commands and sends ASCII data to the client using the socket functionality in Java. I have no problems using PrintStream sending commands or using BufferedReader to receive data from the barcode reader separately. The problem I am currently having is receiving data from the barcode reader immeditately after I send it a command string. For example there is a command string that I can send to the barcode reader and by doing so the barcode reader will return settings in ASCII data.

Here is my code:

Code :

---

try 
          {   
 
            //Create a connection to server
            Socket s = new Socket(ipAddress, portNumber);
            //Create input and output streams to socket
            PrintStream out = new PrintStream(s.getOutputStream());
            //Create input streams to socket
            BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));
 
            //send the command string to the barcode reader 
            out.print("sRN LocationName");  
 
            //receive data from barcode reader that the command string initiated
            String line = in.readLine();
            System.out.println("Text received: " + line);
 
            //close the stream
            out.close();
 
            //close the stream
            in.close();
 
            //close the socket
            s.close();
 
        }catch (SocketException e )
        {
            //for debugging purposes
            System.err.println ("Socket error : " + e);
 
        }catch (UnknownHostException e )
        {
            //for debugging purposes
            System.err.println ("Invalid host!");
 
        }catch (IOException e )
        {
            //for debugging purposes
            System.err.println ("I/O error : " + e);
 
        }

---

Everytime I try it I get no return. I know it works because I have tested in Hyperterminal and it works everytime.

Any help is appreciated.

Thanks,
Tim