Deck 12: Adding Functionality to Your Classes

Question 1

Static member ____ can only access static data members and other static member ____ of the class.

A) functions, functions
B) objects, variables
C) variables, functions
D) references, variables

Answer 1

A

Question 2

When overloading the insertion operator to process a Complex object, it s important to understand that you re overloading an operator in the ____ class.

A) istream
B) Complex
C) operator
D) ostream

Answer 2

D

Question 3

The ____ of an identifier defines the portion of a program where the identifier can be accessed.

A) scope
B) reach
C) section
D) block

Answer 3

A

Question 4

As each class is defined, it gets its own block of memory for its data members.

Question 5

A nonmember function can access private class data members as a(n) ____.

A) operator
B) friend
C) static function
D) privileged function

Question 6

In this statement: double RoomDimension::TotalSqFootage = 0.0; TotalSqFootage is a(n) ____.

A) static variable
B) class
C) method
D) namespace

Question 7

Conversion from a built-in type to a class type is made using a(n) ____ constructor.

A) object conversion
B) type conversion
C) copy
D) type exchange

Question 8

The initial class used as the basis for the derived class is referred to as the subclass.

Question 9

An object s data member takes precedence over a global variable of the same name.

Question 10

An implicit conversion occurs in C++ s operations.

Question 11

____ class variables are allocated memory locations independent of any object being instantiated.

A) Global
B) Extern
C) Static
D) Register

Question 12

A derived class object can be assigned to a base class object.

Question 13

Class member functions are global in the file where they re defined but can be called only for objects created from the class.

Question 14

Inheritance allows redefining how member functions of related classes operate based on the class object being referenced.

Question 15

Overloading the insertion ( >) operators for class use requires creating operator functions that use these symbols but have a parameter list that includes a class ____.

A) reference
B) object
C) data type
D) address

Question 16

You cannot create static member functions in C++.

Question 17

The function used to overload the ostream insertion operator is referred to as a(n) ____.

A) user-defined function
B) static function
C) friend function
D) operator function

Question 18

In multiple inheritance, a derived type has two or more base types.

Question 19

With the introduction of user-defined data types, there are ____ possibilities for conversion between data types.

A) two
B) three
C) four
D) eight

Question 20

Converting from a class to a class is done in the same manner as a conversion from a class to a built-in data type.

Question 21

Assigning a floating-point value to an integer variable is an example of a(n) ____ conversion.

A) implicit
B) functional
C) operation
D) explicit

Question 22

Basing function selection on the object making the call is the classic definition of ____ behavior.

A) inherited
B) object-oriented
C) instantiated
D) polymorphic

Question 23

Setting up a conversion makes sense only when there s a(n) ____ relationship between data types.

A) meaningful
B) inverse
C) virtual
D) inherited

Question 24

A conversion operator function uses the name of a(n) ____.

A) member function
B) instance variable
C) built-in data type
D) object

Question 25

The cout stream object s insertion operator function can be ____________________ to process user-defined class objects.

Question 26

One step in modifying cin to handle the Complex class is to provide access to the Complex class data. This is achieved by declaring the extraction operator function as a(n) ____________________ in the Complex class.

Question 27

If a base class member has a protected access and the derived class s access specifier is public , the derived class member is ____ to its class.

A) public
B) global
C) protected
D) private

Question 28

When a derived class object is assigned to a base class object, only the set of all the ____ class data members is assigned.

A) base
B) instantiated
C) private
D) derived

Question 29

Including a declaration for the second class before the first class s definition is formally called a(n) ____.

A) prior declaration
B) forward declaration
C) namespace declaration
D) including declaration

Question 30

A built-in to built-in conversion is handled by C++ s implicit conversion rules or its explicit ___________________ operator.

Question 31

Casting from a base to a derived class requires a(n) ____ to initialize the derived class members that aren t in the base class.

A) destructor
B) mutator
C) operator
D) constructor

Question 32

Dynamic binding determines which function should be called at runtime, based on the ____ type making the call.

A) object
B) class
C) function
D) operator

Question 33

____ is the capability of deriving one class from another class.

A) Overloading
B) Redefinition
C) Polymorphism
D) Inheritance

Question 34

A ____ function tells the compiler to create a pointer to a function but not fill in the pointer s value until the function is actually called.

A) bound
B) virtual
C) pointer
D) member

Question 35

All ____ data members come into existence before any objects are created.

A) public
B) static
C) virtual
D) local

Question 36

Because a(n) ____________________ function can be called explicitly after all objects have been declared, it can be used as a cast independent of its initialization purpose.

Question 37

Overriding a base member function by using an overloaded derived member function is an example of ____.

A) inheritance
B) scoping
C) polymorphism
D) derivation

Question 38

In a(n) ____ language, data and operations can be incorporated together in such a way that data values can be isolated and accessed through the specified class functions, but inheritance is not required.

A) class
B) object-based
C) object-bound
D) class-bound

Question 39

Conversion from a class type to a built-in type is made by using a ____ function.

A) copy operator
B) reference
C) type constructor
D) conversion operator

Question 40

In the assignment b = a; where a is a user-defined data type and b is a built in type, the conversion to the built in type is ____________________.

Question 41

In class to class conversion, including a conversion operator function with the second class s name in the first class creates a problem if the second class hasn t been ____________________.

Question 42

The feature of object-oriented languages called ____________________ allows redefining how member functions of related classes operate, based on the object being referenced.

Question 43

There are two categories of scope: local and ____________________.

Question 44

Class data members are ____________________ in scope to objects created from the class.

Question 45

____________________ access permits access only to member or friend functions, and allows any derived class to inherit this restriction.

Question 46

In the absence of a derived class constructor, the compiler automatically calls the default ____________________ class constructor first.

Question 47

C++ requires declaring static variables in the class ____________________ section.

Question 48

In normal function calls, ____________________ binding is used, meaning the determination of which function is called is made at compile time.

Question 49

The first line of the declaration section of a derived class must include an access specifier and a(n) ____________________ class name.

Question 50

A static variable with ____________________ access may be assigned a value or altered by a member function anywhere after the static variable s definition.