Additional Notes
How do you decide where a field belongs?
Track: Java
Topic: OOP
Focus: Fields and State
Java: Fields and State
Answer
Put the data on the object where that fact naturally lives in the domain.
A product's stock belongs to `Product`, while a cart-line quantity belongs to `CartItem`. Good field placement makes the model feel obvious and reduces awkward parameter passing.
A product's stock belongs to `Product`, while a cart-line quantity belongs to `CartItem`. Good field placement makes the model feel obvious and reduces awkward parameter passing.
Topics: Fields and State Java OOP