Multithreading with client server program

Question

I am trying to implement multi threading with a client/server program I have been working on. I need to allow multiple clients to connect to the server at the same time. I

Answer 1

Your server code should address implement below functionalities.

1. Keep accepting socket from ServerSocket in a while loop

2. Create new thread after accept() call by passing client socket i.e Socket

3. Do IO processing in client socket thread e.g ClientWorker in your case.

Have a look at this article

Your code should be

ServerSocket serverSocket = new ServerSocket(portNumber);
while(true){
  try{
    Socket clientSocket = serverSocket.accept();
    Thread thread = new ClientWorker(clientSocket);
    thread.start(); //start thread
  }catch(Exception err){
     err.printStackTrace();
  }
}