Additional Notes
How would you explain an invariant in OOP in an interview?
Track: Java
Topic: OOP
Focus: Invariants and Validation
Java: Invariants and Validation
Answer
An invariant is a condition that must always hold true for an object.
Invariants are rules that define consistent states for an object. For example, in a Product class, an invariant might be that the price is always greater than zero. This ensures the product always has a valid and logical state.
Invariants are rules that define consistent states for an object. For example, in a Product class, an invariant might be that the price is always greater than zero. This ensures the product always has a valid and logical state.
Topics: Invariants and Validation Java OOP