Java Client-Server Chat Application

A simple Java networking project that demonstrates real-time communication between a client and server using Socket Programming.

This project uses TCP sockets to establish a connection where the client sends messages to the server and the server responds back interactively through the terminal.

Features

• Real-time client-server communication
• Java Socket Programming
• TCP/IP based connection
• Interactive terminal chat
• Beginner-friendly networking project
• Separate client and server implementation

Technologies Used

• Java
• Socket Programming
• TCP/IP Networking
• BufferedReader
• PrintStream

Project Structure

├── ChatServer.java
└── ChatClient.java

How It Works

• The server starts and waits for incoming client connections on port 2100.
• The client connects to the server using localhost.
• Messages are exchanged between the client and server through terminal input/output.
• Communication continues until the client enters End.

Steps To Run The Project

1. Compile Both Files

Open terminal in the project folder and run:

javac ChatServer.java
javac ChatClient.java

2. Start The Server

Run:

java ChatServer

You will see:

Server Application Is Running...
Server Is Waiting At Port 2100

3. Start The Client

Open another terminal window and run:

java ChatClient

You will see:

Client Application Is Running...
Connection Is Successful With The Server

Chat Communication

• Client sends message to server
• Server receives and replies
• Communication happens continuously

To stop communication, type:

End

Learning Concepts

This project helps in understanding:

• Client-Server Architecture
• Java Networking
• Socket Communication
• Input/Output Streams
• TCP Protocol Basics

Future Improvements

• GUI based chat application
• Multiple client support
• Message encryption
• File sharing
• Chat history storage
• User authentication

Author

Ketan Lade