Deck 7: Object-Oriented Programming

Question 1

For a language to be considered object-oriented,it must support polymorphism,____,and encapsulation.

A) objects
B) class users
C) instantiation
D) inheritance

Answer 1

D

Question 2

Declaring a class creates actual objects.

Answer 2

False

Question 3

A class ____ describes what attributes its objects will have and what those objects will be able to do.

A) profile
B) definition
C) interface
D) signature

Answer 3

B

Question 4

____ programming is a style of programming that focuses on an application's data and the methods you need to manipulate that data.

A) Object-oriented
B) Functional
C) Object
D) Method

Question 5

A program or class that instantiates objects of another prewritten class is a ____ or class user.

A) class slave
B) class object
C) class master
D) class client

Question 6

For a language to be considered object-oriented,it must include ____.

A) get and set methods
B) classes and objects
C) instance variables and methods
D) variables and methods

Question 7

Polymorphism is the feature of languages that allows the same word or symbol to be interpreted correctly in different situations based on the context.

Question 8

Object-oriented programming uses few of the concepts you are familiar with from modular,procedural programming.

Question 9

It is possible to create a lengthy chain of inheritance.

Question 10

A(n)____ is a term that describes a group of objects with common properties.

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

Question 11

The syntax used to declare a class differs among programming languages.

Question 12

An ____ of a class is an existing object of a class.

A) example
B) occurrence
C) instance
D) illustration

Question 13

When an object is created it is ____.

A) instantiatied
B) invoked
C) involved
D) instanced

Question 14

A class definition can contain four parts.

Question 15

When you program in object-oriented languages,you frequently create classes from which objects will be instantiated.

Question 16

Although at first,OOP seems to add a layer of complexity to programming logic,after you master it,understanding program logic and working with programs become easier.

Question 17

Usually,data fields are public and methods are private.

Question 18

Each data variable that exists for every object is called a(n)____ variable.

A) instance
B) class
C) program
D) numeric

Question 19

In object-oriented terminology,a(n)____ is one concrete example of a class.

A) entity
B) interface
C) method
D) object

Question 20

In object-oriented design,you usually want any outside programs or methods to be able to alter your class's data fields at any time to ensure that the program works.

Question 21

Objects are ____,meaning one object can inherit characteristics from another,like objects in the real world.

A) encapsulated
B) extensible
C) invisible
D) definable

Question 22

____ methods change values within an object.

A) Transformer
B) Change
C) Mutator
D) Get

Question 23

A ____ definition is just an abstract description of what an object will be like if any objects are ever actually instantiated.

A) class
B) prototype
C) accessor
D) signature

Question 24

____ methods assign values to the fields of any objects created from the class.

A) Accessor
B) Set
C) Change
D) Get

Question 25

A method ____ the version in the base class when it has the same name and parameter list.

A) overhauls
B) redefines
C) overrides
D) overwhelms

Question 26

Each method that each object can use is an ____ method.

A) invoke
B) instance
C) enabled
D) included

Question 27

Because the plus symbol (+)has diverse meanings based on context,it is ____.

A) overdefined
B) defined
C) polyclassist
D) polymorphic

Question 28

Object-oriented programmers usually specify that their data fields will have ____.

A) public access
B) private access
C) inheritance
D) signatures

Question 29

In some languages,a derived class can have more than one parent.This capability is called ____.

A) multiple inheritance
B) multiple heritage
C) multiplicity
D) multiple lineage

Question 30

The term ____ implies that the type's data can be accessed only through methods.

A) abstract type
B) data type
C) abstract data type
D) object data type

Question 31

By ____ the data,you pass one argument.

A) encapsulating
B) hiding
C) exposing
D) internalizing

Question 32

A class that inherits from a base class is a ____ class.

A) super
B) lower
C) derived
D) parent

Question 33

According to the principle of ____,data fields should usually be private,and a client application should be able to access them only through the public interfaces,that is,through the class's public methods.

A) function hiding
B) data hiding
C) data encapsulation
D) data definition

Question 34

An ____ is a term that defines the type of access that outside classes will have to the attribute or method.

A) access specifier
B) accessor
C) access interface
D) accessor method

Question 35

____ is the ability to create classes that take on the attributes and methods of existing classes,but with more specific features.

A) Heritage
B) Instantiation
C) Heredity
D) Inheritance

Question 36

Each object's features are separate or ____ from all others.

A) refined
B) abstracted
C) encapsulated
D) insulated

Question 37

____ describes a language's ability to process objects differently depending on each object's data type.

A) Polysymbolism
B) Polymorphism
C) Polyflexible
D) Polyclassism

Question 38

____ methods pass the data stored in a field back to a client program.

A) Mutator
B) Send
C) Set
D) Get

Question 39

When you create a new class using inheritance,you ____ the existing class.

A) stretch
B) expand
C) extend
D) broaden

Question 40

When you use inheritance you can reuse well-established features of ____.

A) parent classes
B) derived classes
C) child classes
D) subclasses

Question 41

Identify an object that might belong to the Automobile class:

A) string name
B) num price
C) Toyota
D) jet

Question 42

What features must a programming language have for it to be considered an object-oriented language?

Question 43

The following pseudocode is not working correctly.Which answer shows the corrected code? start
Declarations
Product myApple
MyApple.setName = "Gala"
Output "My favorite apple is ",myApple.getName()
Stop

A) Product.setName = "Gala"
B) myApple.setName("Gala")
C) Product = "Gala"
D) Product.setName("Gala")

Question 44

Rewrite the following pseudocode making the appropriate corrections.
start
Declarations
Employee myAssistant
myAssistant.setName("Reynolds")
myAssistant.setPayRate = 16.75
output "My assistant ",Employee.getName(),
" makes ",Employee.getPayRate(),
" per hour"
stop

Question 45

What is NOT true about the following pseudocode? class Salesperson inheritsFrom Employee

A) Every Salesperson has all the attributes of an Employee
B) Salesperson is a derived class
C) Every Salesperson object can use all Employee methods
D) Salesperson is a base class

Question 46

Write the pseudocode for a class named Product that holds a product name.Include methods to get and set the value for each data field.

Question 47

The following pseudocode is not working correctly.Which answer shows the corrected code? class Product
Fields
String name
Methods
Void setName(string prodName)
Name = prodName
Return
String getName()
Return
EndClass

A) string getName()
Return name
B) void setName(prodName)
C) string getName(prodName)
Return name
D) string getName(prodName)
Return

Question 48

Which declaration instantiates an object of the Automobile class?

A) myFord Automobile
B) Automobile myFord
C) Transportation myFord
D) Tranportation Automobile

Question 49

List the three parts of a class definition.

Question 50

Why do object-oriented programmers usually specify that their data fields will have private access?