Additional Notes
How does encapsulation help maintain invariants in a class?
Track: Java
Topic: OOP
Focus: Encapsulation
Java: Encapsulation
Answer
By ensuring all changes are made through controlled methods.
Encapsulation helps maintain class invariants by restricting how fields are accessed and modified. This means that any change to a field will be mediated by methods that enforce the class's rules. In a `UserAccount` class, encapsulating the `balance` field with deposit and withdraw methods ensures the balance never falls below zero.
Encapsulation helps maintain class invariants by restricting how fields are accessed and modified. This means that any change to a field will be mediated by methods that enforce the class's rules. In a `UserAccount` class, encapsulating the `balance` field with deposit and withdraw methods ensures the balance never falls below zero.
Topics: Encapsulation Java OOP