I try to program a chat, and I can send the message to the server.
But, unfortunately, my server can't send back the message it received.
Althought I put the necessary code, I think:

try{
   BufferedReader recep = new BufferedReader(
                              new
InputStreamReader(SOCK.getInputStream()));
     
      while (true){
           String message = recep.readLine();
        OUT_BUF.println(message);
          }
}

I notify the OUT_BUF parameter refers to the PrintWriter class.
As you can see, the message received should be returned to the
clients.

Thank you for helping.