Ch.15 Inheritance, Polymorphism, And Complete Test Bank 9e

Starting Out with C++ from Control Structures to Objects, 9e (Gaddis)

Chapter 15 Inheritance, Polymorphism, and Virtual Functions

TRUE/FALSE

1. In an inheritance situation, you may not pass arguments to a base class constructor.

2. More than one class may be derived from a base class.

3. A derived class may become a base class if another class is derived from it.

4. The base class access specification can be viewed as a filter that base class members must pass through when becoming inherited members of a derived class.

5. When arguments must be passed to the base class constructor, they are passed from the derived class constructor's header line.

6. A member function of a derived class may not have the same name as a member function of a base class.

7. Static binding occurs when the compiler binds a function call with the function call that resides in the same class as the call itself.

8. Pointers to a base class may be assigned the address of a derived class object.

9. A derived class may not have any classes derived from it.

10. In C++11, if a derived class attempts to override a final member function, the compiler generates an error.

11. C++11 provides a way for a derived class to inherit some of the base class's constructors.

12. In C++11, using constructor inheritance, it is possible for any of the base class's constructors to be inherited.

MULTIPLE CHOICE

1. In OOP programming, __________ allows you to create new classes based on existing classes.

2. When you derive a class from an existing class, you __________ add new data and functions.

3. The __________ members of a base class are never accessible to a derived class.

4. The __________ constructor is called before the __________ constructor.

5. A __________ of a base class expects to be overridden in a derived class.

6. The term __________ means the ability to take many forms.

7. When the compiler binds a member function call with the version of the function that resides in the same class as the call itself, it is considered

8. The compiler performs __________ on virtual functions.

9. When more than one class is derived from a base class, the situation is called

10. When a derived class has two or more base classes, the situation is called

11. Multiple inheritance opens the opportunity for a derived class to have ___________ members.

12. Which is the base class in the following statement?

class Car : public Vehicle

13. The following statement allows the __________ members of the Car class to access __________ members of the Vehicle class.

class Car : public Vehicle

14. Which is the derived class in the following statement?

class Car : protected Vehicle

15. What is being protected in the following statement?

class Car : protected Vehicle

16. Arguments are passed to the base class by the __________ class __________ function.

17. Arguments are passed to the base class destructor by the __________ class __________ function.

18. Protected members of a base class are like __________, but they may be accessed by derived classes.

19. The __________ destructor is called before the __________ destructor.

20. Which of the following is commonly used to extend a class or to give it additional capabilities?

21. When member functions behave differently depending on which object performed the call, this is an example of

22. A virtual function is a function that expects to be __________ in a derived class.

23. Multiple inheritance is when a __________ class has __________ base classes.

24. A virtual function is declared by placing the __________ key word in front of the return type in the base class's function declaration.

25. Polymorphism is when __________ in a class hierarchy perform differently, depending on which object performs the call.

26. Functions that are dynamically bound by the compiler are __________ functions.

27. C++11 introduced the __________ key word to help prevent subtle errors when overriding virtual functions.

MULTIPLE RESPONSE

1. Select all that apply. The base class's __________ affects the way its members are inherited by the derived class.

2. Select all that apply. In an inheritance situation, the new class that you create from an existing class is known as the

3. Select all that apply. Which of the following constructors cannot be inherited through constructor inheritance?

4. Select all that apply. The base class access specification determines how __________ members in the base class may be accessed by derived classes.