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Mobile Management System

A secure C++ implementation of a mobile phone management system with password protection and balance tracking capabilities. A Mobile Management System where the user sets up a phone, locks/unlocks it with a password, checks phone info, performs a recharge, and makes calls.

🗒️ Diagram

Image

🚀 Features

  • Secure Phone Management

    • Password-based locking system
    • Failed attempt tracking
    • Automatic blocking after multiple failed attempts
    • Secure password change functionality

  • Balance Management

    • Real-time balance tracking
    • Recharge capability
    • Per-minute call cost calculation (0.5 Taka/minute)
    • Low balance alerts

  • User Information

    • Store owner details
    • Mobile number management
    • OS information
    • Detailed information display

📋 Prerequisites

  • C++ Compiler (GCC 7.0+)
  • Make (optional, for build automation)
  • Basic understanding of terminal/command line

🛠️ Setup

  1. Clone the repository
git clone https://github.com/yourusername/Mobile-Management-System-CPP.git
cd Mobile-Management-System-CPP
  1. Compile the project
g++ -o mobile mobile_management.cpp
  1. Run the program
./mobile_management

💻 Usage

// Create a new mobile phone instance
Mobile phone;

// Set up basic information
phone.setOwnerName("Ahnaf Hossain");
phone.setMobileNumber("01712345678");
phone.setOsName("Android");

// Set password and manage security
phone.setPassword(1234);
phone.unlock(1234);  // Unlock with password

// Perform operations
phone.recharge(100);
phone.callSomeone(10);  // 10-minute call
phone.showInfo();

🔒 Security Features

  • Maximum 3 failed password attempts
  • 30-second blocking period after maximum attempts
  • Automatic locking after password change
  • Failed attempts reset after successful unlock

📱 Class Structure

class Mobile {
private:
    string ownerName;
    string mobileNumber;
    double mobileBalance;
    string osName;
    bool lockStatus;
    int password;
    int failedAttempts;

public:
    // Constructors and methods
    ...
};

Output

Image

🤝 Contributing

  1. Fork the repository
  2. Create your feature branch (git checkout -b feature/AmazingFeature)
  3. Commit your changes (git commit -m 'feat: add some AmazingFeature')
  4. Push to the branch (git push origin feature/AmazingFeature)
  5. Open a Pull Request

📄 License

This project is licensed under the MIT License - see the LICENSE.md file for details

👤 Author

MD Ahnaf Hossain - ahnaf-hossain2

🙏 Acknowledgments

  • Inspired by modern mobile phone security systems
  • Built as part of C++ learning journey