Deck 11: Classes and Objects

Question 1

The code in the Get block allows the application to assign a value to the Private variable.

Answer 1

False

Question 2

The sole purpose of a constructor is to initialize the class's variables.

Answer 2

True

Question 3

Two constructors in a class can have the same parameters.

Answer 3

False

Question 4

Constructors must be Function procedures.

Question 5

Using a Public property to assign a value received from a program ensures that the Set block is processed.

Question 6

All the words in a method name should be verbs.

Question 7

When you use a class to create an object in an application, the procedures declared using the Private keyword are hidden from the application.

Question 8

When you use a class to create an object in an application, variables declared using both the Public keyword and the Private keyword are made available to the application.

Question 9

The Class statement is entered in a class file.

Question 10

The methods of an object describe its characteristics.

Question 11

The Class statement begins with the keywords Private Class.

Question 12

You can enter only one instruction within a Set statement.

Question 13

A method that is not a constructor can be either a Sub procedure or a Function procedure.

Question 14

By convention, the first letter of each word in a method name should be capitalized.

Question 15

Every class should have at least one constructor.

Question 16

The methods in a class cannot reference the class's Private variables directly; they must reference the Private variables indirectly through the Public properties.

Question 17

By convention, most programmers capitalize the first letter in a class name.

Question 18

A statement that is used to create an object from a class must begin with the Dim keyword.

Question 19

You should always use a Public property to assign a value received from a program.

Question 20

The Get block of a Public property typically contains the validation code.

Question 21

A Property procedure begins with the keywords ____.

A) Public Property
B) Private Property
C) Start Property
D) Dim Property

Question 22

The default constructor has ____ parameter(s).

A) 0
B) 1
C) 2
D) n

Question 23

After an object is created and its address assigned to a variable, you can access its properties using the syntax ____.

A) objectVariable ( property )
B) objectVariable . property
C) objectVariable (). property
D) objectVariable [ property ]

Question 24

The data type of a Property procedure must match the data type of the Private variable associated with the Property procedure.

Question 25

The Get statement begins with the keywords Start Get.

Question 26

The code contained in the ____ block allows an application to retrieve the contents of the Private variable associated with the property.

A) Set
B) Assign
C) New
D) Get

Question 27

A ____ is a method whose instructions the computer processes, automatically, each time an object is created from the class.

A) structure
B) designer
C) loader
D) constructor

Question 28

By convention, the first letter of each word in a property name should be capitalized.

Question 29

Within the Property procedure you define a Get block of code and a(n) ____ block of code.

A) Retrieve
B) Set
C) New
D) Assign

Question 30

The properties of an object allow the object to perform tasks.

Question 31

You create a Public property using a Property ____.

A) variable
B) procedure
C) constructor
D) class

Question 32

When an application needs to assign data to or retrieve data from a Private variable in a class, it must use a Public ____ to do so.

A) parameter
B) constructor
C) argument
D) property

Question 33

When a property is declared using the ____ keyword, it can be accessed by any application that uses an object created from the class.

A) Public
B) Private
C) Protected
D) Friend

Question 34

Each constructor included in a class has the name ____.

A) Get
B) Set
C) New
D) Start

Question 35

A variable that is declared with the ____ keyword can be used only by the class in which it is defined.

A) Public
B) Protected
C) Friend
D) Private

Question 36

Objects are created, or instantiated, from ____.

A) methods
B) properties
C) variables
D) classes

Question 37

You can define a class that contains properties only.

Question 38

The Class statement ends with the keyword(s) ____.

A) Class
B) Exit Class
C) End Class
D) Next Class

Question 39

A Property procedure ends with the keyword(s) ____.

A) Property
B) Exit Property
C) End Property
D) Next Property

Question 40

The Set statement begins with the keyword ____.

A) Set
B) Public Set
C) Start Set
D) Private Set

Question 41

A ____ encapsulates the attributes and behaviors of the object it creates.

A) constructor
B) property
C) class
D) structure

Question 42

The Return privateVariable instruction is entered in ____.

A) the default constructor
B) a constructor other than the default constructor
C) a Get block
D) a Set block

Question 43

The first word in a method name should be a(n) ____.

A) verb
B) noun
C) adjective
D) preposition

Question 44

The Get statement ends with the keyword(s) ____.

A) Get
B) End Get
C) Exit Get
D) Next Get

Question 45

You should use ____ to name a property.

A) nouns only
B) adjectives only
C) verbs only
D) nouns and adjectives

Question 46

In the following instruction, Room is a(n) ____. Dim bedroom As New Room

A) object
B) variable
C) class
D) property

Question 47

A text box is created from the TextBox ____.

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

Question 48

A ____ initializes the class's variables.

A) constructor
B) Public property
C) Set block
D) Get block

Question 49

The ____ privateVariable instruction directs the computer to return the contents of the Private variable.

A) Send
B) Throw
C) Pass
D) Return

Question 50

In the Set statement, a parameter is enclosed in ____.

A) brackets
B) quotation marks
C) braces
D) parentheses