🏦 Bank Management System (Console App)

▶️ Click here to watch the demo

💻 A fully-featured Console-based Bank Management System developed in C++ using Object-Oriented Programming (OOP) principles. 🔐 The project simulates real banking operations such as user authentication, client management, transactions, permissions, and currency exchange.

📌 Project Overview

🎯 This system is designed to demonstrate strong OOP design in C++ through a modular, scalable, and maintainable architecture. 💾 All data is persisted using file-based storage, with 🔒 encrypted sensitive information.

🧱 System Architecture

🧩 The project is organized into multiple layers and responsibilities:

🔐 Authentication & Security

🔑 Secure login system with 3 attempts limit

🔒 Encrypted passwords stored in files

📝 Login activity tracking (Login Register)

🛡️ Role-based access control using permissions

🧑‍💼 User Management

➕ Add users

✏️ Update users

❌ Delete users

🧾 Permission-based access control

📊 Login history tracking

👥 Client Management

➕ Add new clients

✏️ Update client information

❌ Delete clients

🔍 Search for clients

📋 Display full client list

💰 Transactions

💵 Deposit

💸 Withdraw

🔄 Money transfer between clients

📜 Transaction history

🌍 Currency Exchange

📂 Currency rates loaded from file

🔍 Search currency by code or country

♻️ Update exchange rates

💲 USD-based conversion system

🖥️ Console UI System

📑 Fully menu-driven console interface

🧭 Screen-based navigation

🎨 Colored output and progress indicators

🧱 Modular screen classes for each feature

🧠 Key Classes Overview

🧩 Class 📌 Responsibility

clsLoginScreen 🔐 Handles authentication, login attempts, and session start clsMainScreen 🏠 Main navigation menu and system flow control clsUser 👤 User entity, authentication, permissions, encryption, persistence clsCurrency 💱 Currency data management and exchange rates clsScreen 🖥️ Base class for all UI screens clsUtil 🔒 Encryption / Decryption utilities clsFileManager 💾 File-based data persistence

🔑 Permissions System

⚙️ The system uses bitwise permissions, allowing flexible role management:

📋 List Clients

➕✏️❌ Add / Update / Delete Clients

💰 Transactions

🧑‍💼 Manage Users

📝 View Login Register

👑 Full Access (Admin)

💾 Data Storage

📁 All data is stored using text files:

👤 BUsers.txt → Users data (🔒 encrypted passwords)

📝 LoginRegister.txt → Login history

💱 Currencies.txt → Currency exchange rates

👥 Clients & 💰 transactions stored similarly

🛠️ Technologies Used

💻 C++

🧠 Object-Oriented Programming (OOP)

📂 File Handling (fstream)

📦 STL (vector, string)

🎨 Console UI enhancements

🔐 Encryption & Decryption utilities

Click on any image to watch the project video on LinkedIn

🖼️ Screenshots

🖥️ How to Run

📂 Important Files:

• 📝 Main code files:
  • Bank System In OOP.cpp → 🖋️ main program file
  • All .h files → 📦 class and function definitions
• 💾 Data files:
  • BClients.txt → 👤 client information
  • BUsers.txt → 🔑 user accounts
  • Currencies.txt → 💱 currency rates
  • LoginRegister.txt, TransferLog.txt → 🗂️ login and transaction logs

⚠️ Note: Keep all data files in the same folder as the program; they are required for the system to work properly.

🏁 Steps to Run:

1. Open the project in any C++ IDE (e.g., Visual Studio) 💻.
2. Make sure all code files and data files are in the same folder 📂.
3. Build the project (Visual Studio shortcut: Ctrl + Shift + B) ⚙️.
4. Press Start / F5 ▶️ to run the program.
5. The console window will show the main menu, allowing you to:
   • 🔐 Log in as a user
   • 👥 Manage clients (Add/Update/Delete)
   • 💰 Perform transactions (Deposit/Withdraw/Transfer)
   • 📊 Check balances and transaction history
   • 💱 Manage currencies and update rates

👤 Author

Wael Samer – Software Engineering Student
This project was assigned by Dr. Mohamed Abu Hadhoud as part of a course on Programming Advices platform .

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