💰 Banking System (Console + GUI)

A Java + SQLite banking system featuring both a console workflow and a Swing GUI, designed to demonstrate clean data access, safe transactions, and a minimal-but-complete banking domain model.

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✨ Highlights

• Create customers and open accounts.
• Deposit and withdraw funds with balance validation.
• View customers, accounts, and balances.
• SQLite-backed persistence with prepared statements.
• Two interfaces: CLI and GUI.

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🧰 Tech Stack

• Java (JDK 8+)
• JDBC
• SQLite
• Swing (GUI)

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🚀 Quick Start

1) Get the SQLite JDBC driver

Download the latest sqlite-jdbc JAR from Maven Central and place it in this folder.

2) Compile and run (CLI)

javac -cp ".;sqlite-jdbc-<version>.jar" BankSystemConsole.java
java -cp ".;sqlite-jdbc-<version>.jar" BankSystemConsole

3) Compile and run (GUI)

javac -cp ".;sqlite-jdbc-<version>.jar" BankSystemGUI.java
java -cp ".;sqlite-jdbc-<version>.jar" BankSystemGUI

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🧭 Architecture Overview

Database (SQLite)

• users(id, name, email)
• accounts(id, user_id, balance)

Flow

• Input → validation → JDBC prepared statement → SQLite → formatted output.

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📸 Sample Output (CLI)

1. Add User
2. Create Account
3. Deposit
4. Withdraw
5. View Accounts
6. Exit
Choose option: 1
Enter name: Alice
Enter email: alice@example.com
User added successfully.

🗺️ Roadmap

• Add transaction history and statements.
• Input validation and email normalization.
• Export reports (CSV/PDF).
• Modularize into DAO + service layers.

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🙌 Acknowledgments

Open to improvements and extensions. Contributions welcome.