A simple web server implementation in Java that includes three types of servers:

1. Single-threaded server – handles one client at a time.
2. Multi-threaded server – creates a new thread for each client connection.
3. Thread-pool server – uses a thread pool to manage client connections efficiently.

• Single-threaded Server: Handles one client request at a time. This server is simple but may become a bottleneck under heavy load.
• Multi-threaded Server: A new thread is spawned for each client connection, allowing multiple clients to be served simultaneously.
• Thread-pool Server: Manages client connections using a pool of threads, which reduces the overhead of constantly creating and destroying threads.

• Java
• Networking (Java Sockets)
• Threading and Concurrency (Executors, Thread Pool)