Hi all, I have created a UDP program, client and server. What i'm trying to do is, hash a string, save the hasded code and the message into a .txt file and send it over to the server.

I have created the UDP program, MD5 hash codes and writing the output into a txt file. Cant seem to figure out how i could send the file over to my server. Can someone help me?

// Imports import java.io.*; import java.net.*; // Class Client Socket public class ClientSocket { public static void main(String[] args) throws IOException { // show main Menu System.out.println("Basic Client Socket Programming"); // Socket Variables Socket clientSocket = null; // for sending and receiving of data PrintWriter outputStream = null; // for sending data BufferedReader inputStream = null; // for receiving data // Create and open socket // Connection to 127.0.0.1, port num=2001 try { clientSocket = new Socket("127.0.0.1", 2001); outputStream = new PrintWriter(clientSocket.getOutputStream(), true); inputStream = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); } catch (UnknownHostException e) { System.err.println("Don't know about host: 127.0.0.1"); return; } catch (IOException e) { System.err.println("Couldn't get I/O for the connection to: 127.0.0.1"); return; } // check if connection is successful if((clientSocket == null) || (outputStream == null) || (inputStream == null)) { System.err.println("Socket Connection not successfull"); return; } else { System.out.println("Socket Connected"); } //generate MD5 and send data String hash = MD5.md5("Hello"); System.out.println("Hash code generated: "+hash); //outputStream.println("Hello ||" + hash); //creates a new BufferWriter to write the hash value and the text message into the txt file. BufferedWriter out = new BufferedWriter(new FileWriter("hashedCode.txt")); out.write(hash); //writes the hash code to the file out.close(); //close the bufferreader //Send the file to the server // receiving data String rcvData; rcvData = inputStream.readLine(); System.out.println(rcvData); // close connections try { outputStream.close(); inputStream.close(); clientSocket.close(); System.out.println("Connection closed."); } catch (UnknownHostException e) { System.err.println("Trying to connect to unknown host: " + e); } catch (IOException e) { System.err.println("IOException: " + e); } // exit program return; } }

// Imports import java.io.*; import java.net.*; public class serverSocket { public static void main(String[] args) throws IOException { // show main Menu System.out.println("Basic Client Socket Programming"); // Socket Variables ServerSocket serverSocket = null; // for listen for connection Socket rcvSocket = null; // for sending n rcving data DataOutputStream outputStream = null; // for sending data DataInputStream inputStream = null; // for receiving data // try to open a socket to listen for incoming data // port number must match the one that the client is connecting to try { serverSocket = new ServerSocket(2001); } catch (IOException e) { System.err.println(e); } // creating a socket to rcv incoming data while (true) { try { System.out.println("Listening"); rcvSocket = serverSocket.accept(); System.out.println("Connected"); PrintWriter out = new PrintWriter(rcvSocket.getOutputStream(), true); BufferedReader in = new BufferedReader(new InputStreamReader(rcvSocket.getInputStream())); // initiate conversation with client String rcvData = in.readLine(); System.out.println("Rcv Data: " + rcvData); out.println(rcvData); } catch (IOException e) { System.err.println(e); } } } }