A comprehensive Java-based personal finance management system demonstrating professional software architecture and object-oriented design principles.
- Savings Account with automatic interest calculation (5% rate)
- Current Account with overdraft protection
- Real-time balance tracking and validation
- Secure deposit and withdrawal operations
- Complete transaction history with timestamps
- Automated transaction recording (deposits, withdrawals)
- Detailed audit trail with formatted reports
- Persistent storage to file system
- Multi-category budget creation (Food, Transport, Entertainment)
- Real-time expense monitoring
- Smart alerts at 90% threshold
- Overspending detection and warnings
- Average transaction calculation
- Maximum transaction identification
- Type-safe generic data analysis
- Statistical insights on spending patterns
- Automated interest calculation (runs every 5 seconds)
- Continuous budget monitoring (runs every 3 seconds)
- Multi-threaded architecture for non-blocking operations
- Daemon threads for background tasks
- Object-Oriented Design: Abstract classes, inheritance hierarchies, and polymorphism
- Interface-Driven: Clean contracts with Transactionable interface
- Generic Programming: Type-safe data structures with bounded generics
- Concurrency: Multi-threaded operations with synchronization
- Exception Safety: Custom exception handling with InsufficientFundsException
- File I/O: Persistent data storage with BufferedReader/Writer
- Inner Classes: Encapsulated BudgetAlert functionality
- Java Development Kit (JDK) 8 or higher
- Any Java IDE or text editor