Chapter 7

Question 1

True/False: Object-oriented programming is centered around objects that include both data and the functions that operate on them.

Answer 1

True

Question 2

True/False: ADT stands for Algorithmic Data Type.

Answer 2

False

Question 3

Which of the following statements about ADTs are true:
A) They specify the values the data type can hold.
B) They specify the operations the data type can perform.
C) They hide the details of how the data type is implemented.
D) All of the above.
E) A and B, but not C.

Answer 3

D

Question 4

True/False: A class declaration provides a pattern for creating objects, but doesn’t make any objects.

Answer 4

True

Question 5

An object typically hides its data, but allows outside code to access it through its …

Answer 5

public member functions

Question 6

In OOP terminology, an object’s member variables are often called its [Blank], and its member functions are sometimes referred to as its [Blank].

Answer 6

attributes, methods

Question 7

When three different objects of a class are created, they are said to be separate [Blank] of the class.

Answer 7

instances

Question 8

When the body of a member function is defined inside a class declaration, it is called a(n) [Blank] function.

Answer 8

inline

Question 9

True/False: A constructor is a public class function that is automatically invoked (i.e. called) whenever a class object is created.

Answer 9

True

Question 10

True/False: A class must have exactly one constructor.

Answer 10

False

Question 11

A constructor may have a return type of …

Answer 11

None

Question 12

A constructor that does not require that any arguments be passed to it is called a(n) [Blank] constructor.

Answer 12

default

Question 13

A destructor is a member function that …

Answer 13

is automatically called when an object is destroyed

Question 14

A(n) [Blank] member function may be called by a statement in a function that is outside of the class.

Answer 14

public

Question 15

A C++ member function that uses, but does not change, the value of a member variable is called …

Answer 15

an accessor.

Question 16

Accessors are sometimes called [Blank] functions and mutators are sometimes called [Blank] functions.

Answer 16

get, set

Question 17

IfCircle is the name of a class, which statements would create a Circle object named myCircle?
A) myCircle Circle;
B) myCircle Circle();
C) Circle myCircle;
D) Circle myCircle();
E) None of the above

Answer 17

C

Question 18

18) If setRadius is a Circle class function and myCircle is a Circle object, which of the following
statements would set myCircle’s radius to 2.5?
A) setRadius(2.5);
B) myCircle.setRadius(2.5);
C) Circle.setRadius(2.5);
D) Circle(setRadius(2.5));
E) None of the above

Answer 18

B

Question 19

True/False: A structure has member variables, like an object, but they are usually all public and accessed
directly with the dot operator, instead of by calling member functions.

Answer 19

True