Core Java · interview question
Which of the following practices best helps maintain invariants in a Java class?
Multiple choiceMediumchapter-3-curatedpremiumcore-javacode-reading-and-state-safety
Answer and explanation
Correct answer
B. Validating inputs in setters and constructors.
Why
Validating inputs in setters and constructors ensures that only valid data is set on the object, which helps maintain the class invariants and ensures consistent state.
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