Core Java · interview question
In the context of encapsulation, why should a class in an e-commerce system avoid exposing collections directly?
Multiple choiceHardchapter-3-curatedpremiumcore-javacode-reading-and-state-safety
Answer and explanation
Correct answer
C. To prevent external modification of the collection
Why
Exposing collections directly allows external code to modify the collection, potentially violating invariants. Instead, provide unmodifiable views or controlled access methods.
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