Question 1

Both the copy constructor and the assignment operator should make ___________

Accepted Answer

a complete and indep

Question 2

Why are the extraction and insertion operators always implemented as friends of the class rather than as members of the class?

Accepted Answer

A) Because the first parameter must be the stream object. 
B) They don't,they could be members 
C) Because they return a reference 
D) Because the stream is passed by reference. 
A) Because the first parameter must be the stream object. 
B) They don't,they could be members 
C) Because they return a reference 
D) Because the stream is passed by reference.

Question 3

Operators must be friends of the class.

Accepted Answer

A) True 
 B)False

Question 4

An overloaded extraction or insertion operator should return ___________

Accepted Answer

a referenc

Question 5

If a given task being performed by a function involves one object,then that function should normally be a __________ function.

Accepted Answer

The answer of If a given task being performed by...

Question 6

Which of the following are valid declarations for an assignment operator for a class named myClass?

Accepted Answer

A) void friend operator = myClass& left,const myClass& source); 
B) void operator = myClass& left,const myClass& source); 
C) void friend operator = const myClass& source); 
D) void operator = const myClass& source); 
A) void friend operator = myClass& left,const myClass& source); 
B) void operator = myClass& left,const myClass& source); 
C) void friend operator = const myClass& source); 
D) void operator = const myClass& source);

Question 7

In order to do automatic type conversion for your class,you would write _________

Accepted Answer

overloaded

Question 8

Which of the following would be an appropriate function declaration to add two rational numbers?

Accepted Answer

A) void friend operator+ const Rational &left,const Rational &right); 
B) void operatator+ const Rational &left,const Rational &right); 
C) friend Rational operator+ const Rational &left,const Rational &right); 
D) Rational operator+ const Rational &left,const Rational &right); 
A) void friend operator+ const Rational &left,const Rational &right); 
B) void operatator+ const Rational &left,const Rational &right); 
C) friend Rational operator+ const Rational &left,const Rational &right); 
D) Rational operator+ const Rational &left,const Rational &right);

Question 9

An operator that expects two parameters is called a ________ operator.

Accepted Answer

The answer of An operator that expects two parameters is...

Question 10

What is wrong with the following overloaded extraction operator declaration?
Istream& operator >>istream& in,const myClass &object);

Accepted Answer

A) Object should not be a pass by reference parameter 
B) Object should not be a const parameter 
C) You can not put the & on the return type 
D) nothing 
A) Object should not be a pass by reference parameter 
B) Object should not be a const parameter 
C) You can not put the & on the return type 
D) nothing

Question 11

What happens when you define a class that used dynamic memory allocation and define a destructor but no copy constructor?

Accepted Answer

A) If an object of the class is plugged in for a call-by-value parameter,when the function ends,the parameter's dynamic memory is returned to the freestore at the end of the function execution. 
B) When an object that was used as an argument for a call-by-value parameter goes out of scope,it will cause a run-time error. 
C) It is possible to modify the values in the argument in the function. 
D) All of the above 
E) None of the above 
A) If an object of the class is plugged in for a call-by-value parameter,when the function ends,the parameter's dynamic memory is returned to the freestore at the end of the function execution. 
B) When an object that was used as an argument for a call-by-value parameter goes out of scope,it will cause a run-time error. 
C) It is possible to modify the values in the argument in the function. 
D) All of the above 
E) None of the above

Question 12

If a given task being performed by a function involves more than one object,then that function should normally be a __________ function.

Accepted Answer

The answer of If a given task being performed by...

Question 13

Putting the keyword const after the function declaration guarantees __________________________

Accepted Answer

That the function wi

Question 14

In the following code fragment,which is the calling object for the less-than operator?
String s1,s2;
If s1 < s2 )

Accepted Answer

A) s1 
B) s2 
C) < 
D) none 
A) s1 
B) s2 
C) < 
D) none

Question 15

When a dynamic array with a class for a base type is declared,which constructor is called?

Accepted Answer

A) the copy constructor 
B) the destructor 
C) the default constructor 
D) an explicit constructor 
A) the copy constructor 
B) the destructor 
C) the default constructor 
D) an explicit constructor

Question 16

Given the following function declaration,
Friend void displayconst myClass& object);
Which is the correct header for the definition of the function?

Accepted Answer

A) void myClass::displayconst myClass& object) 
B) void displayconst myClass& object) 
C) friend void displayconst myClass& object); 
D) friend void displayconst myClass& object) 
A) void myClass::displayconst myClass& object) 
B) void displayconst myClass& object) 
C) friend void displayconst myClass& object); 
D) friend void displayconst myClass& object)

Question 17

Friend functions are members of the class.

Accepted Answer

A) True 
 B)False

Question 18

If obj1 and obj2 are both objects of a class that uses dynamic memory allocation,but the class does not have an assignment operator,what happens if you execute the following code?
Obj1=obj2;

Accepted Answer

A) A syntax error occurs,you can not assign one object to another object without the = operator 
B) A run-time error occurs,because the C++ system does not know how to do the assignment. 
C) The pointers)to the dynamically declared memory in obj2 are copied to the corresponding pointers in obj1. 
D) There is a complete and independent copy of all the dynamic memory from obj2 to obj1 
A) A syntax error occurs,you can not assign one object to another object without the = operator 
B) A run-time error occurs,because the C++ system does not know how to do the assignment. 
C) The pointers)to the dynamically declared memory in obj2 are copied to the corresponding pointers in obj1. 
D) There is a complete and independent copy of all the dynamic memory from obj2 to obj1

Question 19

Write the function declaration for a copy constructor for a class named myClass

Accepted Answer

myClass co

Question 20

Which of the following statements are true?

Accepted Answer

A) A dynamic array can have a base type which is a class or a struct. 
B) A class or a struct may have a member which is a dynamic array. 
C) A and B 
D) Neither 
A) A dynamic array can have a base type which is a class or a struct. 
B) A class or a struct may have a member which is a dynamic array. 
C) A and B 
D) Neither

Both the copy constructor and the assignment operator should make ___________

Why are the extraction and insertion operators always implemented as friends of the class rather than as members of the class?

Operators must be friends of the class.

An overloaded extraction or insertion operator should return ___________

If a given task being performed by a function involves one object,then that function should normally be a __________ function.

Which of the following are valid declarations for an assignment operator for a class named myClass?

In order to do automatic type conversion for your class,you would write _________

Which of the following would be an appropriate function declaration to add two rational numbers?

An operator that expects two parameters is called a ________ operator.

What is wrong with the following overloaded extraction operator declaration? Istream& operator >>istream& in,const myClass &object);

What happens when you define a class that used dynamic memory allocation and define a destructor but no copy constructor?

If a given task being performed by a function involves more than one object,then that function should normally be a __________ function.

Putting the keyword const after the function declaration guarantees __________________________

In the following code fragment,which is the calling object for the less-than operator? String s1,s2; If s1 < s2 )

When a dynamic array with a class for a base type is declared,which constructor is called?

Given the following function declaration, Friend void displayconst myClass& object); Which is the correct header for the definition of the function?

Friend functions are members of the class.

If obj1 and obj2 are both objects of a class that uses dynamic memory allocation,but the class does not have an assignment operator,what happens if you execute the following code? Obj1=obj2;

Write the function declaration for a copy constructor for a class named myClass

Which of the following statements are true?

Introduction to Computer and C Programming

C++ Basics

More Flow of Control

Procedural Abstraction and Functions That Return a Value

Functions for All Sub Tasks

Io Streams As an Introduction to Objects and Classes

Arrays

Strings and Vectors

Pointers and Dynamic Arrays

Defining Classes

Separate Compilation and Namespaces

Pointers and Linked Lists

Recursion

Inheritance

Exception Handling

Templates

Standard Template Library

Filters

Exam 11: Friends, overloaded Operators, and Arrays in Classes

Both the copy constructor and the assignment operator should make ___________

Why are the extraction and insertion operators always implemented as friends of the class rather than as members of the class?

Operators must be friends of the class.

An overloaded extraction or insertion operator should return ___________

If a given task being performed by a function involves one object,then that function should normally be a __________ function.

Which of the following are valid declarations for an assignment operator for a class named myClass?

In order to do automatic type conversion for your class,you would write _________

Which of the following would be an appropriate function declaration to add two rational numbers?

An operator that expects two parameters is called a ________ operator.

What is wrong with the following overloaded extraction operator declaration? Istream& operator >>istream& in,const myClass &object);

What happens when you define a class that used dynamic memory allocation and define a destructor but no copy constructor?

If a given task being performed by a function involves more than one object,then that function should normally be a __________ function.

Putting the keyword const after the function declaration guarantees __________________________

In the following code fragment,which is the calling object for the less-than operator? String s1,s2; If s1 < s2 )

When a dynamic array with a class for a base type is declared,which constructor is called?

Given the following function declaration, Friend void displayconst myClass& object); Which is the correct header for the definition of the function?

Friend functions are members of the class.

If obj1 and obj2 are both objects of a class that uses dynamic memory allocation,but the class does not have an assignment operator,what happens if you execute the following code? Obj1=obj2;

Write the function declaration for a copy constructor for a class named myClass

Which of the following statements are true?

Introduction to Computer and C Programming

C++ Basics

More Flow of Control

Procedural Abstraction and Functions That Return a Value

Functions for All Sub Tasks

Io Streams As an Introduction to Objects and Classes

Arrays

Strings and Vectors

Pointers and Dynamic Arrays

Defining Classes

Separate Compilation and Namespaces

Pointers and Linked Lists

Recursion

Inheritance

Exception Handling

Templates

Standard Template Library

Filters