Chapter 14 More About Classes

Question 1

If a member variable is declared ________, all objects of that class have access to the same variable.

Answer 1

Static

Question 2

Static member variables are defined ________ the class.

Answer 2

Outside

Question 3

A(n) ________ member function cannot access any nonstatic member variables in its own class.

Answer 3

Static

Question 4

A static member function may be called _______ any instances of its class are defined.

Answer 4

Before

Question 5

A(n) ________ function is not a member of the class, but has access to the private members of the class.

Answer 5

Friend

Question 6

A(n) _______ tells the compiler that a specific class will be declared later in the function.

Answer 6

Forward declaration

Question 7

________ is the default behavior when an object is assigned the value of another object of the same class.

Answer 7

Memberwise assignment

Question 8

A(n) ________ is a special constructor, called whenever a new object is initialized with another object’s data.

Answer 8

Copy Constructor

Question 9

_______ is a special built in pointer that is automatically passed as a hidden argument to all nonstatic member functions.

Answer 9

This

Question 10

An operator may be _______ to work with a specific class.

Answer 10

Overloaded

Question 11

When overloading the ________ operator, its function must have a dummy parameter.

Answer 11

Postfix increment (or decrement)

Question 12

Making an instance of one class a member of another class is called ________.

Answer 12

Aggregation

Question 13

Object aggregation is useful for creating a(n) ________ relationship between two classes.

Answer 13

Has a

Question 14

Static variables cannot be accessed by nonstatic member functions. t/f

Answer 14

true

Question 15

Static member variables are defined outside their class declaration. t/f

Answer 15

true

Question 16

A static member function may refer to nonstatic member variables of the same class, but only after an instance of the class has been defined. t/f

Answer 16

false

Question 17

When a function is declared a friend by a class, it becomes a member of the class. t/f

Answer 17

false

Question 18

A friend has access to the private members of the class declaring it a friend. t/f

Answer 18

true

Question 19

an entire class may be declared a friend of another class. t/f

Answer 19

true

Question 20

In order for a function or a class to become a friend of another class, it must be declared as such by the class granting it access. t/f

Answer 20

true

Question 21

If a class has a pointer as a member, it’s a good idea to also have a copy constructor. t/f

Answer 21

true

Question 22

You cannot use the = operator to assign one object’s values to another object, unless you overload the operator. t/f

Answer 22

false

Question 23

If a class doesn’t have a copy constructor, the compiler generates a default copy constructor for it. t/f

Answer 23

true

Question 24

If a class has a copy constructor, and an object of that class is passed by value into a function, the function’s parameter will not call its copy constructor. t/f

Answer 24

false

Question 25

The “this” pointer is passed to static member functions. t/f

Answer 25

false

Question 26

All functions that overload unary operators must have a dummy parameter. t/f

Answer 26

false

Question 27

For an object to perform automatic type conversion, an operator function must be written. t/f

Answer 27

true

Question 28

It is possible to have an instance of one class as a member of another class. t/f

Answer 28

true