Java Chat Messenger with Log Facility

📌 Overview

Java Chat Messenger is a simple client-server chat application developed using Java Socket Programming. The application enables real-time communication between a client and a server over a TCP connection.

It also includes a chat logging feature, which records all exchanged messages into a log file for future reference.

This project demonstrates fundamental concepts of Java networking, I/O streams, and client-server architecture.

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🚀 Features

• Real-time communication between client and server
• TCP-based socket communication
• Console-based chat interface
• Automatic message logging to file
• Simple and lightweight architecture
• Easy to extend for multi-client systems

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🛠 Technologies Used

• Java
• Socket Programming
• Java IO Streams
• File Handling (FileWriter & BufferedWriter)

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📂 Project Structure

Java-Chat-Messenger-With-Log-Facility
│
├── src
│   └── chatmessenger
│        ├── Client.java
│        └── Server.java
│
├── logs
│   └── chat_log.txt
│
├── docs
│   └── project_overview.md
│
├── README.md
└── .gitignore

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⚙️ How to Run the Project

1️⃣ Clone the Repository

git clone https://github.com/yourusername/Java-Chat-Messenger-With-Log-Facility.git

2️⃣ Navigate to Source Directory

cd Java-Chat-Messenger-With-Log-Facility/src/chatmessenger

3️⃣ Compile the Program

javac Server.java
javac Client.java

4️⃣ Run the Server

java Server

5️⃣ Run the Client (in another terminal)

java Client

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💬 How the Application Works

1. The Server starts and waits for a client connection on port 2100.
2. The Client connects to the server using a socket.
3. Messages are exchanged between client and server through input/output streams.
4. The server stores each message in chat_log.txt.
5. Communication continues until the client terminates the session.

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📝 Chat Log Example

Example content stored in the log file:

Client : Hello
Server : Hi
Client : How are you?
Server : I am fine

The log file helps maintain a record of all chat communication.

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📸 Example Console Interaction

Server

Server application is running...
Server is waiting for the client at port number 2100
Connection established with the Client...
Client says : Hello
Enter message for client :
Hi

Client

Client application is running...
Connection established with the Server...
Hello
Server says : Hi

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🔮 Possible Future Enhancements

• Support for multiple clients
• Graphical user interface using Java Swing
• Timestamped message logging
• Encrypted communication
• Message history retrieval

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👨‍💻 Author

Sahil Rajaram Thorat Java Backend Developer (Fresher) Pune, Maharashtra, India

GitHub: https://github.com/SahilThorat11

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📄 License

This project is licensed under the MIT License.