Core Java · interview question
Why might using the 'instanceof' operator in a method implementation be considered a bad practice?
Multiple choiceHardchapter-5-curatedpremiumcore-javacode-reading-with-related-types
Answer and explanation
Correct answer
B. It violates the Open/Closed Principle.
Why
Using 'instanceof' can violate the Open/Closed Principle by creating a method that requires modification when new classes are added, thus reducing flexibility and increasing maintenance.
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