Enterprise-grade Java payroll management system with OOP design, multiple employee types, tax calculations, and data persistence. professional application.

Spring Boot Dependency Injection|| project demonstrating Dependency Injection, custom controller logic, RESTful CRUD operations, and tax calculation based on developer levels with enum-based logic.

🏢 Enterprise-grade Java cost calculation system with advanced tax processing, discount management, and professional financial reporting. Features multi-mode calculations, currency formatting, input validation, and comprehensive business analytics. Perfect for e-commerce, retail, and educational applications.