Question: XML file communication between server and client

Hi, All

I have created a random array of data and transferred them to XML file
as my random noise file. Now, I would like to transfer the noise from
my client to the server through TCP socket connection. I referred to
the KnockKnock example in the tutorial on java.sun.com.

Here is the code of the my client, I don't know how to modify the part
I noted by //----------- so that I can transfer my noise.xml file.

public class Client {
    public static void main(String[] args) throws IOException {

        Socket serverSocket = null;
        PrintWriter out = null;
        BufferedReader in = null;
// Set up the connect to server
        try {
            serverSocket = new Socket("ServerName", 123);
            //server name and port number on the server
            //client's socket is bound to any available local port
            out = new PrintWriter(serverSocket.getOutputStream(),
true);
            in = new BufferedReader(new
InputStreamReader(serverSocket.getInputStream()));
        } catch (UnknownHostException e) {
            System.err.println("Don't know about host: ServerName.");
            System.exit(1);
        } catch (IOException e) {
            System.err.println("Couldn't get I/O for the connection
to: ServerName.");
            System.exit(1);
        }

        //Communication between client and server
        //??????????????????????????????????????
        //How to implement my experiment: Write the rand number in XML
file I generated to server?

        //----------------------------------------------------------------------------
        BufferedReader stdIn = new BufferedReader(new
InputStreamReader(System.in));
        String fromServer;
        String fromUser;

        while ((fromServer = in.readLine()) != null) {
            System.out.println("Server: " + fromServer);
            if (fromServer.equals("Bye."))
                break;

            fromUser = stdIn.readLine();
        if (fromUser != null) {
                System.out.println("Client: " + fromUser);
                out.println(fromUser);
        //-----------------------------------------------------------------------------
        }
        }

        //Clean all the ports
        out.close();
        in.close();
        stdIn.close();
        serverSocket.close();
    }
}

I help someone can give me some idea and help me out. Thank you.

Fengyuan (Thomas)