Object-oriented programming · interview question
What happens if a subclass does not implement all abstract methods from its abstract superclass?
Multiple choiceEasychapter-5-curatedpremiumoopabstract-classes
Answer and explanation
Correct answer
B. The subclass must be declared abstract.
Why
If a subclass does not implement all abstract methods from its abstract superclass, it must itself be declared abstract. Otherwise, it will result in a compilation error.
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