Deck 10: Introduction to Object-Oriented Design

Question 1

A data member that is private

A)cannot be referred to by methods that are public.
B)cannot be referred to from anywhere outside the class in which it is declared.
C)is usable only by a constructor method.
D)must be defined before data members that are public are defined.

Answer 1

B

Question 2

A design approach that focuses on algorithms is commonly known as

A)process-oriented design.
B)object-oriented design.
C)procedure-oriented design.
D)event-driven design.

Answer 2

C

Question 3

Choose a class/object example from the list below.

A)program/data member
B)girl/Beverly
C)Ford/automobile
D)car/engine

Answer 3

B

Question 4

A return value

A)is required when parameters are specified for a method.
B)is passed back to the caller of a method.
C)is usually specified for a constructor method.
D)identifies the final method in a class definition.

Question 5

A class represents a template from which any number of objects can be created.

Question 6

Overloading can occur between two or more classes but cannot occur within a single class.

Question 7

Use of parameters is not supported for constructor methods.

Question 8

A protected data member

A)can only be accessed after overriding has occurred.
B)cannot be accessed from a subclass of the class that contains it.
C)cannot be accessed from classes other than the class that contains it.
D)can be accessed from within the class that contains it.

Question 9

A special kind of method that performs initialization is a(n)

A)definer.
B)override.
C)constructor.
D)character.

Question 10

What action is expressed by the statement GradeBook: GradeBookM101?

A)The object GradeBookM101 is assigned to the variable GradeBook.
B)The GradeBookM101 method of the object GradeBook is invoked.
C)An object GradeBookMl0l of the class GradeBook is created.
D)The GradeBook class is renamed GradeBookM101.

Question 11

Values passed when a method is called are known as

A)variables.
B)parameters.
C)data members.
D)arguments.

Question 12

What action is expressed by the statement GradeBookS204.ShowStudent?

A)The method ShowStudent is assigned to the class GradeBookS204.
B)The method ShowStudent of the object GradeBookS204 is destroyed.
C)The method ShowStudent of the class GradeBookS204 is instantiated.
D)The method ShowStudent of the object GradeBookS204 is invoked.

Question 13

Creating an object is called

A)instantiation.
B) overloading.
C) modeling.
D)abstraction.

Question 14

The acronym UML stands for

A)Unified Modeling Language.
B)United Memory Language.
C)United Modeling Language.
D)Unstructured Member Language.

Question 15

If a method is defined wisely,users of the method don't have to know how the method is implemented.

Question 16

Which of the terms below does not have a meaning similar to the other three?

A)process
B)model
C)class
D)abstraction

Question 17

In a class definition,operations are specified in

A)properties.
B)records.
C)attributes.
D)methods.

Question 18

The means of communicating with an object is a(n)

A)operation.
B)behavior.
C)message.
D)variable.

Question 19

Packaging data methods and members into a single well-defined programming unit is known as

A)overriding.
B)data hiding.
C)encapsulation.
D)classification.

Question 20

A class definition is an abstraction.

Question 21

Data hiding is a means of achieving overloading of a particular method.

Question 22

A public method is part of the internal interface of a program.

Question 23

A single method cannot be both public and private at the same time.

Question 24

A return value for a method is required.

Question 25

A constructor must have the same name as the class that contains it.

Question 26

A class is an instance of an object.

Question 27

A data type must be specified for a method name.

Question 28

A data type for a return value must be specified in the method heading.

Question 29

A driver program can cause instances of classes to be created during processing.

Question 30

A default constructor can perform memory allocation.