Language Upgrades · interview question
What role does the 'permits' clause play in a sealed class declaration?
Multiple choiceMediumchapter-12-curatedpremiumlanguage-upgradespattern-matching
Answer and explanation
Correct answer
B. It specifies the classes that may extend the sealed class.
Why
The 'permits' clause in a sealed class declaration specifies which specific classes are allowed to extend the sealed class, forming a controlled hierarchy.
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