Additional Notes
Why use private fields in a class?
Track: Java
Topic: OOP
Focus: Invariants and Validation
Java: Invariants and Validation
Answer
Private fields restrict direct access, enforcing encapsulation.
Using private fields prevents external classes from changing the internal state directly, allowing controlled access through methods. In an e-commerce Product class, having private fields for price and stock ensures they can only be modified through methods that validate their values.
Using private fields prevents external classes from changing the internal state directly, allowing controlled access through methods. In an e-commerce Product class, having private fields for price and stock ensures they can only be modified through methods that validate their values.
Topics: Invariants and Validation Java OOP