a) If a base class has a method such as : public int ABC(), an inherited class cannot reduce accessibility to this method by declaring it as protected (i.e. protected int ABC()) b) Assume class B in inherited from class A. The following statement, where a1 and b1 are references to objects from A and B respectively, would result in compilation error: a1 = (A)b1; c) A constructor of an inherited class has the right to call the this() constructor and the super() constructor but super() must be called first d) Even if a class A is created as an abstract class, the following code will still be okay: A a1; e) The keyword extends indicates polymorphism.

a) If a base class has a method such as : public int ABC(), an inherited class cannot reduce accessibility to this method by declaring it as protected (i.e. protected int ABC()) b) Assume class B in inherited from class A. The following statement, where a1 and b1 are references to objects from A and B respectively, would result in compilation error: a1 = (A)b1; c) A constructor of an inherited class has the right to call the this() constructor and the super() constructor but super() must be called first d) Even if a class A is created as an abstract class, the following code will still be okay: A a1; e) The keyword extends indicates polymorphism.

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter11: Inheritance And Composition

Section: Chapter Questions

Problem 6PE

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