Consider Classes A, B and C, Where a Is an Abstract

question 14

Multiple Choice

Consider classes A, B and C, where A is an abstract superclass, B is a concrete class that inherits from A and C is a concrete class that inherits from B. Class A declares abstract method originalMethod, implemented in class B. Which of the following statements is true of class C?

• A) Method originalMethod cannot be overridden in class C-once it has been implemented in concrete class B, it is implicitly final.
• B) Method originalMethod must be overridden in class C, or a compilation error will occur.
• C) If method originalMethod is not overridden in class C but is called by an object of class C, an error occurs.
• D) None of the above.

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Producing positive or helpful results or effects; advantageous.

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