C7

Question 1

What is the difference between a class and an instance of the class?

Answer 1

A class is a blueprint; an instance is a concrete object created from that blueprint.

Question 2

What is the default access specification of class members?

Answer 2

private

Question 3

The two common programming methods in practice today are _________ and _________.

Answer 3

procedural; object-oriented

Question 4

_________ programming is centered around functions or procedures.

Answer 4

procedural

Question 5

_________ programming is centered around objects.

Answer 5

object-oriented

Question 6

_________ is an object’s ability to contain and manipulate its own data.

Answer 6

encapsulation

Question 7

In C++, the _________ is the construct primarily used to create objects.

Answer 7

class

Question 8

A class is very similar to a(n) _________.

Answer 8

structure

Question 9

A(n) _________ is a keyword inside a class declaration that establishes a member’s accessibility.

Answer 9

access specifier

Question 10

The default access specification of class members is _________.

Answer 10

private

Question 11

The default access specification of a struct in C++ is _________.

Answer 11

public

Question 12

Defining a class object is often called the _________ of a class.

Answer 12

instantiation

Question 13

Members of a class object may be accessed through a pointer to the object by using the _________ operator.

Answer 13

arrow (->)

Question 14

If you were writing the declaration of a class named BankAccount, what would you name the file it was stored in?

Answer 14

BankAccount.h

Question 15

If you were writing the external definitions of the BankAccount class’s member functions, you would save them in a file named _________.

Answer 15

BankAccount.cpp

Question 16

When a member function’s body is written inside a class declaration, the function is _________.

Answer 16

inline

Question 17

A(n) _________ is automatically called when an object is created.

Answer 17

constructor

Question 18

A(n) _________ is a member function with the same name as the class.

Answer 18

constructor

Question 19

_________ are useful for performing initialization or setup routines in a class object.

Answer 19

Constructors

Question 20

Constructors cannot have a(n) _________ type.

Answer 20

return

Question 21

A(n) _________ constructor is one that requires no arguments.

Answer 21

default

Question 22

A(n) _________ is a member function that is automatically called when an object is destroyed.

Answer 22

destructor

Question 23

A destructor has the same name as the class, but is preceded by a(n) _________ character.

Answer 23

tilde (~)

Question 24

Like constructors, destructors cannot have a(n) _________ type.

Answer 24

return

Question 25

A constructor whose arguments all have default values is a(n) _________ constructor.

Answer 25

default

Question 26

A class may have more than one constructor, as long as each has a different _________.

Answer 26

parameter list

Question 27

A class may only have one default _________ and one _________.

Answer 27

constructor; destructor

Question 28

A(n) _________ may be used to pass arguments to the constructors of elements in an object array.

Answer 28

constructor

Question 29

Private members must be declared before public members.

Answer 29

False

Question 30

Class members are private by default.

Answer 30

True

Question 31

Members of a struct are private by default.

Answer 31

False

Question 32

Classes and structures in C++ are very similar.

Answer 32

True

Question 33

All private members of a class must be declared together.

Answer 33

False

Question 34

All public members of a class must be declared together.

Answer 34

False

Question 35

It is legal to define a pointer to a class object.

Answer 35

True

Question 36

You can use the new operator to dynamically allocate an instance of a class.

Answer 36

True

Question 37

A private member function may be called from a statement outside the class, if it is in the same program.

Answer 37

False

Question 38

Constructors do not have to have the same name as the class.

Answer 38

False

Question 39

Constructors may not have a return type.

Answer 39

True

Question 40

Constructors cannot take arguments.

Answer 40

False

Question 41

Destructors cannot take arguments.

Answer 41

True

Question 42

Destructors may return a value.

Answer 42

False

Question 43

Constructors may have default arguments.

Answer 43

True

Question 44

Member functions may be overloaded.

Answer 44

True

Question 45

Constructors may not be overloaded.

Answer 45

False

Question 46

A class may not have a constructor with no parameter list and a constructor whose arguments all have default values.

Answer 46

True

Question 47

A class may only have one destructor.

Answer 47

True

Question 48

When an array of objects is defined, the constructor is only called for the first element.

Answer 48

False

Question 49

To find the classes needed for an object-oriented application, you identify all of the verbs in the problem description.

Answer 49

False

Question 50

A class’s responsibilities are the things the class must know and actions it must perform.

Answer 50

True