Java: Basic Modeling

Correct class placement ensures logical organization and maintainability.

Placing data in the correct class reflects the real-world relationship and responsibilities of objects. For example, a 'Product' class should have attributes like price and description, while a 'Customer' class should manage customer-specific data like name and address. Misplacing them could lead to confusion and errors, such as storing product prices in the 'Customer' class, which would make it difficult to maintain and extend the application.