Deck 11: Introduction to Classes

Question 1

Constructors are considered to be mutator functions.

Answer 1

False

Question 2

C++ constructors cannot be written as inline functions.

Answer 2

False

Question 3

In C++, an object may be declared with empty parentheses.

Answer 3

False

Question 4

In C++, class names must always start with a capital letter.

Question 5

Languages that use classes but don t provide inheritance and polymorphism are referred to as ____ languages.

A) object-based
B) object-oriented
C) object-supported
D) object-complying

Question 6

In computer terminology, the combination of data and associated operations is defined as a(n) ____.

A) constant type
B) external type
C) data type
D) variable type

Question 7

The class declaration section begins with the keyword ____ followed by a class name.

A) instance
B) typedef
C) create
D) class

Question 8

In C++, a common programming error consists of including a return type with the constructor s prototype.

Question 9

When constructing a class in C++, the ____ section declares both the data types and functions for the class.

A) declaration
B) implementation
C) definition
D) data

Question 10

Like constructors, there can be more than one destructor function per class.

Question 11

The C language, which is C++ s predecessor, is a(n) ____ language.

A) hybrid
B) procedural
C) object-oriented
D) relational

Question 12

The first requirement of a pure object-oriented language is that it contain three specific features: classes, inheritance, and ____.

A) virtual functions
B) constants
C) variables
D) polymorphism

Question 13

Central to the creation of objects is the concept of a(n) ____ data type.

A) contained
B) included
C) abstract
D) concrete

Question 14

A(n) ____ is simply a user-defined type that defines both a type of data and the operations that can be performed on it.

A) built-in data type
B) abstract data type
C) internal data type
D) external data type

Question 15

In C++, an abstract data type is referred to as a(n) ____.

A) object
B) method
C) attribute
D) class

Question 16

In C++, using the same name for a data member as for a member function does not produce an error.

Question 17

Both the variables and functions listed in the class declaration section are collectively referred to as ____.

A) class methods
B) class attributes
C) class members
D) class instance variables

Question 18

Just as a variable of an integer type must be defined, variables of a user-declared class must also be defined.

Question 19

C++ is an example of a pure object-oriented programming language.

Question 20

User-defined data types are required when you want to create objects that are more complex than simple integers and characters.

Question 21

A common programming error consists of failing to terminate the class declaration section with a ____ character.

A) ;
B) .
C) }
D) ::

Question 22

Objects are referred to as ____ of a class.

A) state
B) members
C) built-in types
D) instances

Question 23

How you choose to store data in a user-defined abstract data type is called its data ____________________.

Question 24

The ____ keyword specifies that the class members following it can be accessed only by using the class functions.

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

Question 25

The term ____ refers to packaging a number of items into a single unit.

A) modular
B) encapsulation
C) interface
D) compression

Question 26

Unlike a procedural approach, a(n) ___________________ approach fits graphically windowed environments well.

Question 27

A(n) ____ is any nonconstructor class method that changes an object s data values.

A) access method
B) mutator method
C) get function
D) return function

Question 28

In a pure object-oriented language, all data types are constructed as ____________________.

Question 29

A ____ function is any function that has the same name as its class.

A) constructor
B) definer
C) destructor
D) creator

Question 30

Variables defined to be of a user-declared class are referred to as ____.

A) attributes
B) member variables
C) objects
D) instance variables

Question 31

By definition, a(n) ____________________ is simply a user-defined type that defines both a type of data and the operations that can be performed on it.

Question 32

The type of access that restricts a user from seeing how data is actually stored is referred to as ____.

A) source scrambling
B) data hiding
C) limited view
D) class hiding

Question 33

The term encapsulation is sometimes used to refer to the process of ____.

A) class implementation
B) object instantiation
C) data hiding
D) class construction

Question 34

The values contained in an object s data members determine the object s ____.

A) category
B) class
C) state
D) scope

Question 35

The term ____ refers to any constructor that does not require any arguments when it is called.

A) main constructor
B) default constructor
C) user-defined constructor
D) empty constructor

Question 36

____ are functions with the same class name as constructors but preceded with a tilde (~).

A) Destructors
B) Collectors
C) Removers
D) Destroyers

Question 37

The ____ section of a class is where the member functions declared in the declaration section are written.

A) declaration
B) body
C) definition
D) implementation

Question 38

A(n) ____ is any non-constructor member function that accesses a class s private data members.

A) set function
B) private function
C) member method
D) accessor function

Question 39

A(n) ____ consists of a class s public member function declarations and any supporting comments.

A) implementation
B) interface
C) class scope
D) object

Question 40

The default membership category in a class is ____________________.

Question 41

Multiple constructors can be defined for each class as long as each one has a different number of and/or different ____________________ types.

Question 42

The ____________________ function has no return type.

Question 43

Defining more than one ____________________ constructor for a class is a common programming error.

Question 44

A class s ____________________ defines the operations permitted to be performed on an object s data members.

Question 45

A(n) ____________________ function is called automatically when an object goes out of existence.

Question 46

In UML diagrams, ____________________ have two qualities: type and visibility.

Question 47

In UML, class diagrams are used to describe classes and their ____________________.

Question 48

An object name and a data member name separated by the ____________________ operator is the standard syntax for referring to an object s data member.

Question 49

The process of creating a new object is often referred to as a(n) ____________________ of the object.

Question 50

The terms class method and class ____________________ are used interchangeably in C++.