Just import the project folder to NetBeans or your preference editor and start the Server. After that, to run the program please start the server and then start a client/s. There's no need to pass any arguments as everything needed must be entered from the user through the GUI.
// The program is getting the server IP automatically if server and client/s are running on the same PC
// Available commands:
- /who -> showing the connected users
- /bye -> disconnects and terminates the thread