Deck 4: Basic Object-Oriented Concepts

Question 1

Which of the following best describes cardinality?

A) It refers to the number of associations that naturally occur between objects.
B) It can also be called multiplicity.
C) It is the relationships of objects in a system.
D) All of the above.

Answer 1

D

Question 2

A(n) __________ is a specific instance of a class.

Answer 2

object

Question 3

Each object might have a different value for a given attribute.

Answer 3

False

Question 4

The term __________ means something that the object knows how to do.

Question 5

Collections of custom methods are called __________ __________.

Question 6

Objects are never naturally related to other objects.

Question 7

__________ means that several items are packaged together into one unit.

Question 8

The term ___________ literally means "multiple forms".

Question 9

A(n) ___________ is an association based on the contest in which we view the objects.

Question 10

What is an aggregation relationship?

A) It is a whole-part relationship.
B) It is an association relationship.
C) It is a connection relationship.
D) It is a composition relationship.

Question 11

Which of the following is TRUE concerning object relationships?

A) They never occur naturally.
B) Cardinality describes the associations between objects.
C) They occur without regard to the context.
D) None of the above.

Question 12

__________ refers to the number of associations that naturally occur between objects.

Question 13

A class is a type of thing.

Question 14

A(n) __________ is the general category that describes a type of thing.

Question 15

Which of the following is TRUE concerning cardinality?

A) It is different from multiplicity.
B) It describes the attributes of a class.
C) It describes natural associations between objects.
D) It describes the capabilities of a class.

Question 16

The computer creates a(n) __________ __________ for each object when the object is created.

Question 17

Which of the following is TRUE concerning attributes?

A) They are capabilities of an object.
B) They are are pieces of information known about objects.
C) They are messages an object can send.
D) All of the above.,

Question 18

Which of the following best describes relationships in object-oriented programming?

A) Associations based on system requirements.
B) Associations based on the context with which the object is viewed.
C) Associations based on system diagrams.
D) Associations based on implementation.

Question 19

A(n) __________ is one piece of information that needs to be know about the objects in the class.

Question 20

An object is the general category and a class is a specific instance.

Question 21

The term polymorphism literally means "multiple forms".

Question 22

Just the method name alone is called the method signature.

Question 23

Encapsulation allows us to think of the attributes and behaviors of the object as one package.

Question 24

An object can send a message to another object.

Question 25

The unified modeling language (UML) uses the term aggregation relationship in place of cardinality.

Question 26

Class libraries are a collection of custom methods.