Assignment $5$: Java Networking Project

Scenario: Chat Application

Objective: Build a client$-$server chat application where multiple clients can connect and communicate.

Requirements:

Implement a server that accepts multiple client connections using sockets.

Clients can send and receive messages, which the server broadcasts to all connected clients.

Include simple user authentication $($e$.$g$.,$ username registration$).$

Handle client disconnections gracefully and maintain ongoing communication.

Parameters:

Proper client$-$server communication: Ensure messages are correctly sent and received.

Error handling: Manage client disconnections and server$-$side errors effectively.

Scalability: Ensure the server can handle multiple clients concurrently.

please write java program of this project.