🏦 Bank Management System (Java)

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📌 Project Overview

The Bank Management System is a console-based Java application developed using Core Java and File Handling.

This project allows users to perform basic banking operations without using SQL or any external database.

All account information is stored securely in a text file (accounts.txt).

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🚀 Features

• ✅ Create New Account
• ✅ Deposit Money
• ✅ Withdraw Money
• ✅ Check Account Balance
• ✅ Prevent Duplicate Accounts
• ✅ Validate Balance Before Withdrawal
• ✅ Automatic File Creation
• ✅ Exception Handling

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🛠 Technologies Used

• Java (Core Java)
• OOP Concepts
• File Handling (FileWriter, FileReader, BufferedReader, BufferedWriter)
• IntelliJ IDEA

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💾 Data Storage Method

This project uses File Handling instead of MySQL.

All account data is stored in:

accounts.txt

📄 Data Format:

accountNumber,name,balance

Example:

101,Reshmitha,5000.0
102,Rahul,3000.0

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📂 Project Structure

BankManagementSystem/
│
├── src/
│   └── BankSystem.java
│
├── accounts.txt  (Auto-created)
│
└── README.md

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▶️ How to Run the Project

1️⃣ Clone the Repository

git clone https://github.com/your-username/BankManagementSystem.git

2️⃣ Open in IntelliJ IDEA

• Open IntelliJ
• Click Open
• Select the project folder

3️⃣ Run the Program

• Open BankSystem.java
• Click Run

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🖥 Application Menu

====== BANK MANAGEMENT SYSTEM ======
1. Create Account
2. Deposit
3. Withdraw
4. Check Balance
5. Exit

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🧠 OOP Concepts Used

• Classes and Objects
• Methods
• Encapsulation (Basic Level)
• Exception Handling
• Loops
• Conditional Statements

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🔍 How It Works

• User selects an operation from the menu
• Program reads/writes account data to accounts.txt
• For deposit/withdraw:
  • Temporary file is created
  • Balance is updated
  • Old file is replaced

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📈 Future Enhancements

• 🔐 Admin Login System
• 🧾 Transaction History
• 💻 GUI Version using Java Swing
• 📊 Interest Calculation Feature
• 📁 Separate Transaction Log File
• 🌐 Convert to Web-Based Application

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🎓 Learning Outcomes

This project helps understand:

• Real-time file handling
• Data persistence without database
• Java console application structure
• Banking logic implementation
• Error handling in Java

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👩‍💻 Author

Reshmitha R
B.Tech / B.E Electronics and Communication Student Student

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📜 License

This project is created for educational purposes only.

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