More About Classes Gaddis Chapter 14 Test Bank Docx

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

Chapter 14 More about Classes

TRUE/FALSE

1. When a class declares an entire class as its friend, the friendship status is reciprocal. That is, each class's member functions have free access to the other's private members.

2. When you overload an operator, you can change the operator's original meaning to something entirely different.

3. By default, when an object is assigned to another object, each member of one object is copied to its counterpart in the other object.

4. The overloaded = operator copies data from one object to another so it is known as the overload copy operator.

5. If you overload the prefix ++ operator, the postfix ++ operator is automatically overloaded.

6. C++ permits you to overload the sizeof operator and the this pointer.

7. When you overload the << operator you must also overload the >> operator.

8. A public data member may be declared a friend of a private function.

9. A static member variable can be used when there are no objects of the class in existence.

10. You can overload the conditional operator to make it function as an unconditional operator.

11. You may overload any C++ operator and you may use the operator function to define non-standard operations, such as @ or ^.

12. In C++ if you overload the < operator, you must also overload the > operator.

13. A static member function does not need to be called by a specific object of the class.

14. It is possible to declare an entire class as a friend of another class.

15. An aggregate class's constructor can use a member initialization list to call the constructors for each of its member objects.

16. The this pointer is a special built-in pointer that is automatically passed as a hidden argument to all non-static member functions.

17. A non-static member function may not access a static member variable.

18. A move operation transfers resources from a source object to a target object.

19. In C++11 an rvalue reference is a reference variable that can refer only to temporary objects.

MULTIPLE CHOICE

1. Each object of a class has its own copy of the class's

2. The __________ member variable may be accessed before any objects of the class have been created.

3. C++ requires that a copy constructor's parameter be a(n)

4. C++ allows you to redefine the way __________ work when used with class objects.

5. When objects contain pointers, it is a good idea to create an explicit __________ function.

6. A good reason to overload an operator is to enable it to

7. Which of the following operators may be used to assign one object to another?

8. When a class contains an instance of another class, it is known as

9. If you do not furnish a(n) __________, an automatic memberwise copy will be performed when one object is assigned to another object.

10. It is a good idea to make a copy constructor's parameters __________ by specifying the __________ key word in the parameter list.

11. A reason to overload the __________ is to allow you to write classes that have array-like behaviors.

12. If a member is declared __________, all objects of that class have access to that variable.

13. A member function that is declared __________ may not access any non-static data members in the class.

14. Which type of function is not a member of a class but has access to the private members of the class?

15. A(n) __________ is a special function that is called whenever a new object is created and initialized with another object's data.

16. If you do not furnish a __________, a default one will be provided by the compiler.

17. When you redefine the way a standard operator works when it is used with class objects, you have __________ the operator.

18. To overload the + operator, you would write a function named

19. A(n) __________ is a special built-in pointer that is available to a class's member functions..

20. An ___________ operator can work with programmer-defined data types.

21. When you overload an operator, you cannot change the number of __________ taken by the operator.

22. A(n) __________ informs the compiler that a class will be declared later in the program.

23. In the following function header, the word int is known as a(n) __________.

FeetInches FeetInches::operator++(int)

24. In C++11 values that persist beyond the statement that created them and have names that make them accessible to other statements in the program are called

25. In C++11 reference variables that can refer only to temporary objects that would otherwise have no name are called __________ and are declared with a __________.

26. In C++11 the __________ operator swaps the members of the object being assigned with the temporary object.

MULTIPLE RESPONSE

1. Select all that apply. Given the following code fragment, which of the things shown below happen when the statement on line 8 executes?

1 int square(int a)

2 {

3 return a * a;

4 }

5 int main()

6 {

7 int x = 0;

8 x = square(5);

9 cout << x << endl;

10 return 0;

11 }