Language Upgrades · interview question
What happens if you try to extend a sealed class without listing the subclass in the 'permits' clause?
Multiple choiceEasychapter-12-curatedpremiumlanguage-upgradessealed-classes
Answer and explanation
Correct answer
C. Compile-time error
Why
If a class attempts to extend a sealed class without being listed in the 'permits' clause, it results in a compile-time error. This ensures the integrity of the class hierarchy.
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