This Java code defines a simple TCP server, InitServer, utilizing the ServerSocket class to handle incoming client connections. The server supports a multi-threaded architecture with an ExecutorService managing a fixed pool of threads. The main method presents a menu allowing the user to either start the server or exit the program. The server, upon initiation, prompts the user to manually input a port number or generate a random one within a specified range. The startServer method establishes a server socket, listens for incoming client connections, and delegates each connection to a separate thread (ClientHandler) for concurrent handling. The ClientHandler class, implemented as an inner class, manages communication with individual clients by reading and broadcasting messages to all connected clients. The server logs relevant information using the Logger class.