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Chapter 15: Problem 23
Fill-in-the-Blank When a derived class redefines a function in a base class, which version of the function do objects that are defined of the base class call? __________
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Fill-in-the-Blank A(n) __________ of inheritance is where one class is derived from a second class, which in turn is derived from a third class.
Write the declaration for class B. The class’s members should be • m, an integer. This variable should not be accessible to code outside the class or to member functions in any class derived from class B. • n, an integer. This variable should not be accessible to code outside the class, but should be accessible to member functions in any class derived from class B. • setM, getM, setN, and getN. These are the set and get functions for the member variables m and n. These functions should be accessible to code outside the class. • calc, a public virtual member function that returns the value of m times n. Next write the declaration for class D, which is derived from class B. The class’s members should be • q, a float. This variable should not be accessible to code outside the class but should be accessible to member functions in any class derived from class D. • r, a float. This variable should not be accessible to code outside the class, but should be accessible to member functions in any class derived from class D. • setQ, getQ, setR, and getR. These are the set and get functions for the member variables q and r. These functions should be accessible to code outside the class. • calc, a public member function that overrides the base class calc function. This function should return the value of q times r.
Write the first line of the declaration for a poodle class. The class should be derived from the Dog class with public base class access.
Can a derived class ever directly access the private members of its base class?
A program has a class Potato, which is derived from the class vegetable, which is derived from the class Food. Is this an example of multiple inheritance? Why or why not?
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