🏦 Bank Management System (C++ OOP)

A full-featured console-based Bank Management System developed in C++ using Object-Oriented Programming (OOP).
The system simulates real-world banking operations including client management, user authentication, financial transactions, and currency exchange.

This project was developed as part of a structured software development roadmap to practice real-world system design using C++ and OOP principles.

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📌 Project Overview

The system is designed primarily for bank employees (users) to manage client accounts efficiently and securely.

Through a console interface, authorized users can:

• Manage client accounts
• Perform banking transactions
• Control system access through permissions
• Monitor user login activity
• Manage currency exchange rates

All system data is stored locally using text files, allowing persistent storage between program runs.

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✨ Key Features

👥 Client Management

The system allows employees to manage bank clients through the following operations:

• Add new clients
• Update client information
• Delete clients
• Search for clients using account number
• Display all registered clients

Each client record includes:

• Account Number
• PIN Code
• Client Name
• Phone Number
• Account Balance

Client data is stored in:

Clients.txt

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🔐 User Authentication & Management

The system includes a secure login system for bank employees.

Features include:

• Add new system users
• Update user credentials
• Manage user permissions
• Delete users
• Display all registered users

User data is stored in:

Users.txt

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🧾 Login Activity Tracking

Every login attempt is automatically recorded for monitoring and auditing purposes.

Each record includes:

• Date
• Time
• Username
• Password
• Permission level

Login records are stored in:

LoginRegister.txt

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💰 Financial Operations

The system supports several essential banking transactions:

• Deposit funds into client accounts
• Withdraw funds with balance validation
• Transfer funds between client accounts
• Display the total balance across all bank accounts

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💱 Currency Exchange Module

The system also includes a currency exchange management module.

Features include:

• Display available currencies
• Search currencies by code or name
• Modify exchange rates (Admin only)
• Currency conversion calculator

Currency data is stored in:

Currencies.txt

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🗂 Data Storage System

The application uses text files as a lightweight database to store and manage data.

File	Description
Clients.txt	Stores client account information
Users.txt	Stores system users
Currencies.txt	Stores currency exchange data
LoginRegister.txt	Stores login activity logs

All records use a custom delimiter for easier parsing:

#//#

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🏷 Example Data Format

Client Record Structure

AccountNumber#//#PinCode#//#Name#//#Phone#//#Balance

Example:

A150#//#197008#//#Hamed Albqis#//#0536242467#//#20000

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User Record Structure

FirstName#//#LastName#//#Email#//#Phone#//#PasswordWithEncryption#//#Permissions

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🧠 OOP Concepts Applied

This project demonstrates several Object-Oriented Programming concepts, including:

• Encapsulation
• Inheritance
• Polymorphism
• Abstraction
• Abstract classes and interfaces
• Modular class-based architecture

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⚙ Technologies & Tools

• Language: C++
• Programming Paradigm: Object-Oriented Programming (OOP)
• Data Storage: File Handling (Text Files)
• Application Type: Console Application