Object-oriented programming (OOP)

centered around objects that include both data and functions that operate on them

T/F: ADT stands for Algorithmic Data Type

FALSE --> ADT: abstract data type --> specifies operations & behavior without specifying how data is stored/implemented -->think of screen vs hidden parts

ADT

-Specify values of data type -Specify operations that data type can perform -Hide details of how the data type is implemented

T/F: A class declaration provides a pattern for creating objects, but doesn't make any objects

TRUE --> ex) class MyClass { }; -->defines structure using keyword class

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

public member functions -->declared inside a class under public -->accessible from part of program that has access to the object

OOP: object's member variables are called ____, and its member functions are referred to as ____

attributes, methods -->attributes: variables / data members that store the state of an object; declared inside class -->methods: functions that define the objects behavior; belong to a class, operate on attributes

When three different objects of a class are created, they are said to be separate ____ of the class

instances

When the body of a member function is defined inside a class declaration, its called _____

inline

T/F: A constructor is a public class function that is automatically invoked (called) whenever a class object is created

TRUE

T/F: A class must have exactly one constructor

FALSE

A constructor may have a return type of ____

NONE: int, bool, void *modified ?

A constructor that doesn't require that any arguments be passed to it is called a ____ constructor

default

A destructor is a member function that

is automatically called when an object is destroyed -->wrong: causes program to end, can only be called by main function, removes old unneeded objects

A ____ member function may be called by a statement in a function that is outside of the class

public

A c++ member function that uses, but doesn't change, the value of a member variable is called ____

an accessor

Accessors are sometimes called ____ functions and mutators are sometimes called ____ functions

get, set

If Circle is the name of a class, which of the following statements would create a Circle object named myCircle?

Circle myCircle; *modified ?

If setRadius is a Circle class function and myCircle is a Circle object, which statement would set myCircle's radius to 2.5?

myCircle.setRadius(2.5);

T/F: 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

TRUE

Which statement creates an enumerated data type and defines an object of that type?

NONE

T/F: ADT is a programmer defined data type that specifies the values the type can hold, the operations that can be performed, and how the operations are implemented

FALSE

T/F: ADTs are normally implemented as classes

TRUE

An object is a ____ of a class

instance

T/F: A class declaration creates an object

FALSE

The bundling of an object's data and functions together is called ____

encapsulation --> think back to visual of locked ball

The ____ is used to protect important data

private access specifier

Public members of a class object can be accessed from outside the class by using the

dot operator

Member function that sets or changes the value stored in a member variable is called ____

a mutator

T/F: A private member function may only be called from a function that is a member of the same class

TRUE

T/F: A constructor is a public class function that gets called whenever you want to re-intialize an object's member data

FALSE

A constructor must have the same name as the

class

The name of a destructor must begin with

a tilde (~)

A class may have ____ default constructor(s) and ____ destructor(s)

only one, only one

When a member function is defined outside of the class declaration, the function name must be qualified with the class name, followed by

the scope resolution operator (: :)

If Square is the name of a class, which of the following statements would create a Square object named box?

Square box;

If setSide is a Square class function and box is a Square object, which of the following statements would set the length of box's side to 5?

box.setSide(5);

T/F: A class can have a member variable that is an instance of another class. This is called object nesting

FALSE

A structure variable is similar to a class object in which of the following ways?

E

When an object or structure variable is passed to a function as a constant reference

D

What will the following code segment display?

1