T.EN Banking System Overview

T.EN Banking is a Java-based client-server banking application that allows users to create accounts, log in using a PIN, check their balance, deposit, withdraw, and view statements. The application uses SQLite for persistence and supports multiple clients connecting to the server.

Features: User registration with full name, date of birth, and PIN. User login using PIN with 3-attempt lockout. Persistent account balance stored in SQLite database. Deposit, withdraw, and balance check functionality. Simple command-line client interface.

Setup & Run Prerequisites

Java 17+ installed Maven (if using Maven for dependencies) SQLite (optional for viewing database)

Running the Server

Open terminal in project directory. Compile and run the server:

Running the Client

Open another terminal in the project directory. Compile and run the client:

Database

The application uses SQLite with a clients table. Schema: clients ( id INTEGER PRIMARY KEY AUTOINCREMENT, full_name TEXT NOT NULL, date_of_birth TEXT NOT NULL, pin INTEGER NOT NULL );

Future Improvements

Implement REST API using Spring Boot. Hash PINs for security. Add transaction history and statements. Build a GUI or web client.