Question 1

Procedures,typically,operate on data items that are within the procedure.

Accepted Answer

Procedures often operate on data items that are passed to them as parameters or are accessed from a broader scope (e.g., global variables) rather than only on data items that are defined within the procedure itself.

Question 2

Which method is called automatically when an object is created?
A)design
B)public
C)private
D)constructor
E)None of the above

Accepted Answer

The constructor method is called automatically when an object is created. This method is used to initialize the object's properties and prepare it for use.

Question 3

The variables,arrays,or other data structures that are stored in the object are known as the object's __________.
A)Records
B)Methods
C)Addresses
D)Fields
E)None of the above

Accepted Answer

The variables, arrays, or other data structures stored within an object are referred to as the object's fields. It is common to use this term when discussing object-oriented programming concepts as it accurately describes the data encapsulated within an object. Records and addresses are not typically used in this context, and while methods are important aspects of an object, they are not considered to be stored within the object's data structure.

Question 4

________________________ is a standard way of drawing diagrams that describe object-oriented systems.
A)Data flow diagram
B)UML
C)flowchart
D)Hierarchy chart
E)None of the above

Accepted Answer

UML (Unified Modeling Language) is a standard way of drawing diagrams that describe object-oriented systems. It has become the universal language used by software developers to design, visualize, and document software systems. UML includes a variety of diagrams such as class diagrams, use case diagrams, sequence diagrams, and activity diagrams.

Question 5

The programmer determines the fields and methods of an object and creates the ______ code.
A)Print
B)Class
C)Module
D)Procedure
E)None of the above

Accepted Answer

A class is a blueprint for creating objects in object-oriented programming. The programmer determines the fields (variables) and methods (functions) that will be included in the class to create a specific type of object. The class code is then used to instantiate objects with the specified properties and behaviors.

Question 6

In a UML diagram what character do you place in front of a field of method name to indicate it is public?
A)+
B)=
C)P
D)-
E)None of the above

Accepted Answer

In UML diagrams, a plus sign (+) is placed in front of a field or method name to indicate that it is public.

Question 7

Which of the following tasks are performed by a procedure?
A)Reading a file
B)Gathering input
C)Displaying output
D)All of the above
E)None of the above

Accepted Answer

All of the above tasks can be performed by a procedure. Procedures are a set of instructions or a routine that perform a specific task or set of tasks. They can read input files, gather user input, and display output.

Question 8

Which of the following are contained in a UML diagram for a class?
A)Class name
B)Class fields
C)Class methods
D)All of the above
E)None of the above

Accepted Answer

A UML diagram for a class typically includes the class name, class fields, and class methods.

Question 9

What type of programming encapsulates data and functions together in an object?
A)Object-oriented
B)Interactive
C)Procedural
D)Menu-driven
E)None of the above

Accepted Answer

Object-oriented programming (OOP) encapsulates data and functions together in an object, which helps in organizing and structuring code. OOP also promotes modularity and code reusability, which makes it a preferred choice for large and complex software applications. Interactive, procedural, and menu-driven programming do not necessarily encapsulate data and functions in an object-oriented way.

Question 10

What type of programming is centered on the procedures or actions that take place in a program?
A)Object-oriented
B)Interactive
C)Procedural
D)Menu-driven
E)None of the above

Accepted Answer

Procedural programming is centered on the steps or procedures that need to be followed in order to achieve a desired outcome. It involves a linear approach to programming, where executing steps in a particular sequence leads to producing a desired result.

Question 11

____________________ allows a new class to extend an existing class.
A)successor
B)accessor
C)inheritance
D)public
E)None of the above

Accepted Answer

Inheritance is the process by which a new class is created by inheriting properties and features of an existing class. This allows the new class to extend and specialize the behavior of the existing class.

Question 12

The procedures that the object performs are known as ____________.
A)Records
B)Methods
C)Addresses
D)fields
E)None of the above

Accepted Answer

The procedures that the object performs are known as methods. Methods are functions or operations that can be performed on objects.

Question 13

_______________ is another name for accessor methods.
A)getters
B)accessors
C)setters
D)private
E)None of the above

Accepted Answer

Accessor methods, also known as getters, are methods used to retrieve the value of a private instance variable. They typically have a naming convention of "getVariableName."

Question 14

The class _________ starts with the word Class followed by the name of the class.
A)body
B)definition
C)return
D)members
E)None of the above

Accepted Answer

The class definition starts with the keyword "class" followed by the name of the class.

Question 15

The word Private that appears before a field declaration,in a class definition,is known as a(n)____________.
A)access specifier
B)specifier
C)Class specifier
D)Inside specifier
E)None of the above

Accepted Answer

The "Private" before a field declaration in a class definition is an access specifier. It determines the level of accessibility to the field by other parts of the program. In this case, "Private" means the field can only be accessed within the same class and cannot be accessed by other classes or objects.

Question 16

The mutator methods are sometimes called _________________.
A)getters
B)accessors
C)setters
D)private
E)None of the above

Accepted Answer

The mutator methods are used to modify (mutate) the values of the class variables. These methods are responsible for changing the internal state of the object. Thus, they are sometimes called setters, as they set the values of the instance variables. Accessors (getters) are used to retrieve (access) the values of the instance variables. Private is a term used to describe access modifiers that limit the access to class members.

Question 17

What allows you to create methods with the same name in different classes and gives you the ability to call the correct method depending on the type of object that is used to call it?
A)Constructor
B)Inheritance
C)Accessor
D)Polymorphism
E)None of the above

Accepted Answer

Polymorphism allows us to create methods with the same name in different classes and call the appropriate method based on the object type that is used to invoke the method.

Question 18

The act of declaring a class variable does not actually create an object in memory.

Accepted Answer

Declaring a class variable only defines its type and name but doesn't allocate memory for an object.

Question 19

What software entity contains both data and procedures?
A)Objects
B)Instances
C)Events
D)Memory location(s)
E)None of the above

Accepted Answer

Objects contain both data (attributes) and procedures (methods) that operate on that data. This is a fundamental concept of object-oriented programming. Options B, C, and D do not necessarily contain both data and procedures together in the same entity.

Question 20

What is the term used for the fields and methods that belong to a class?
A)body
B)definition
C)return
D)members
E)None of the above

Accepted Answer

The fields and methods that belong to a class are called its members, which can be accessed by the instances of that class or other classes that inherit from it.

Quiz 14: Object-Oriented Programming

Procedures,typically,operate on data items that are within the procedure.

Which method is called automatically when an object is created?

The variables,arrays,or other data structures that are stored in the object are known as the object's __________.

________________________ is a standard way of drawing diagrams that describe object-oriented systems.

The programmer determines the fields and methods of an object and creates the ______ code.

In a UML diagram what character do you place in front of a field of method name to indicate it is public?

Which of the following tasks are performed by a procedure?

Which of the following are contained in a UML diagram for a class?

What type of programming encapsulates data and functions together in an object?

What type of programming is centered on the procedures or actions that take place in a program?

____________________ allows a new class to extend an existing class.

The procedures that the object performs are known as ____________.

_______________ is another name for accessor methods.

The class _________ starts with the word Class followed by the name of the class.

The word Private that appears before a field declaration,in a class definition,is known as a(n) ____________.

The mutator methods are sometimes called _________________.

What allows you to create methods with the same name in different classes and gives you the ability to call the correct method depending on the type of object that is used to call it?

The act of declaring a class variable does not actually create an object in memory.

What software entity contains both data and procedures?

What is the term used for the fields and methods that belong to a class?