Chapter 13 - COSC

Members of the class object are accessed with the __.

dot operator

Where are class declarations usually stored?

in their own header files

Objects in an array are accessed with ________.

subtricts

The constructor function always has the same name as

the class

Which of the following is automatically called when an object is destroyed?

the destructor function

Which of the following is used to protect important data?

the private access specifier

What is the output of the following program? #include <iostream> using namespace std; class TestClass { private: int val; void showVal() { cout << val << endl; } public: TestClass(int x) { val = x; } }; int main() { TestClass test(77); test.showVal(); return 0; }

the program will not compile

For the following code, which statement is NOT true? class Point { private: double y; double z; public: double x; };

z is not available to code that is written outside the class.

A C++ class is similar to a(n)

structure

Which of the following is a directive used to create an "include guard" that allows a program to be conditionally compiled to prevent a header file from accidentally being included more than once?

#ifndef

When you dereference an object pointer, use the

-> operator

What is the output of the following program? #include <iostream> using namespace std; class TestClass { public: TestClass(int x) { cout << x << endl; } TestClass () { cout << "Hello!" << endl; } }; int main () { TestClass test; return 0; }

Hello!

The process of object-orientated analysis can be viewed as the following steps:

Identify objects, then define each object's attributes, behaviors, and relationships.

In C++11, you can use __ to initialize a member variable in its declaration statement.

In-place initialization

The constructor function's return type is

None of these

How many default constructors can a class have?

Only one. (Otherwise you'd have a duplicate function, which is not allowed.)

The type of member function that may be called from a statement outside the class is

Public

Assuming that Rectangle is a class name, what can you say is TRUE, given the following statement? Rectangle *BoxPtr;

The statement defines a Rectangle pointer variable named *BoxPtr.

In OOP terminology, an object's member variables are often called it's ___ and its member functions can be referred to as it behaviors or its ___.

attributes, methods

When a constructor has a member initialization list, the initializations take place

before any statements in the body of the constructor execute.

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

In C++11 you can have one constructor call another constructor in the same class by using

constructor delegation

A ________ is a member function that is automatically called when a class object is ________.

constructor, created

A class is a(n) ________ that is defined by the programmer.

data type

In a procedural program you typically have ________ stored in a collection of variables and a set of ________ that perform operations on the data.

data, functions

Objects are created from abstract data types that encapsulate ________ and ________ together.

data, functions

When a constructor function accepts no arguments, or does NOT have to accept arguments because of default arguments, it is called a(n)

default constructor

The following code shows an example of ________ class Point { private: double y = 5.70; double z = 3.0; public: Public member functions go here... };

in-place initialization

When the body of a member function is defined inside a class declaration, it is said to be

inline

Assume that myCar is an instance of the Car class and that the Car class has a member function named accelerate. Which of the following is a valid call to the accelerate member function?

myCar.accelerate();

The destructor function's return type is

nothing; destructors have no return type

If you do NOT declare an access specification, the default for members of a class is

private

Examples of access specifiers are the key words:

private and public

If a local variable and a global variable have the same name within the same program, the ___ resolution operator must be used.

scope