Assigning a subclass reference to a superclass variable is safe ________.
A) because the subclass object has an object of its superclass.
B) because the subclass object is an object of its superclass.
C) only when the superclass is abstract.
D) only when the superclass is concrete.

Question

Quizplus · Accepted Answer

Assigning a subclass reference to a superclass variable is safe because the subclass object is an object of its superclass. This is known as polymorphism, and it allows for flexibility in programming and easier maintenance of code.

Assigning a Subclass Reference to a Superclass Variable Is Safe