Additional Notes
Why use private fields instead of public fields?
Track: Java
Topic: OOP
Focus: Encapsulation
Java: Encapsulation
Answer
Private fields protect the internal state by restricting direct access.
Using private fields ensures that an object's data can only be accessed or modified through its methods, which can enforce rules and validation. In an e-commerce setting, if a `Customer` class had a private field for `balance`, only methods like `deposit` and `withdraw` could change it, ensuring proper checks are made before altering the balance.
Using private fields ensures that an object's data can only be accessed or modified through its methods, which can enforce rules and validation. In an e-commerce setting, if a `Customer` class had a private field for `balance`, only methods like `deposit` and `withdraw` could change it, ensuring proper checks are made before altering the balance.
Topics: Encapsulation Java OOP