Object-oriented programming · interview question
How can immutability help maintain invariants in a class with complex validation logic?
Multiple choiceHardchapter-3-curatedpremiumoopinvariants-and-validation
Answer and explanation
Correct answer
A. Immutability prevents changes to object state after construction
Why
Immutability prevents any changes to the object state after its creation, which means that once the object is validated and created, its invariants are preserved throughout its lifecycle. This is particularly useful for maintaining complex validation logic since the state cannot be altered unexpectedly.
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