Object-oriented programming · interview question
What happens when you cast a superclass reference to a subclass type in Java?
Multiple choiceMediumchapter-5-curatedpremiumooppolymorphism
Answer and explanation
Correct answer
A. Successful if the object was instantiated as the subclass
Why
Casting a superclass reference to a subclass type is successful only if the object was originally instantiated as an instance of that subclass. Otherwise, it results in a ClassCastException at runtime.
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