Question 1

What type of member functions allow a client of a class to assign values to private data members?

Accepted Answer

A)  Client member functions. 
B)  Get member functions. 
C)  Set member functions. 
D)  None of the above. 
A)  Client member functions. 
B)  Get member functions. 
C)  Set member functions. 
D)  None of the above.

Question 2

The type of function a client would use to check the balance of a bank account would be:

Accepted Answer

A)  A utility function. 
B)  A predicate function. 
C)  An access function. 
D)  A constructor. 
A)  A utility function. 
B)  A predicate function. 
C)  An access function. 
D)  A constructor.

Question 3

Which of the following statements about separating a class's interface and implementation is not true?

Accepted Answer

A)  Inline member function definitions are included in the header file. 
B)  Changes in the class's interface will affect the client. 
C)  Private data members are included in the header file. 
D)  Changes in the class's implementation will affect the client. 
A)  Inline member function definitions are included in the header file. 
B)  Changes in the class's interface will affect the client. 
C)  Private data members are included in the header file. 
D)  Changes in the class's implementation will affect the client.

Question 4

Which of the following statements is false?

Accepted Answer

A)  Always try to localize the effects of changes to a class' data members by accessing and manipulating the data members through their set and get functions. 
B)  Services useful to the client should typically be provided in the class' private interface. Change is the rule rather than the exception. You should anticipate that your code will be modified. 
C)  Providing public set and get functions does allow clients of the class to access hidden data, but only indirectly. 
A)  Always try to localize the effects of changes to a class' data members by accessing and manipulating the data members through their set and get functions. 
B)  Services useful to the client should typically be provided in the class' private interface. Change is the rule rather than the exception. You should anticipate that your code will be modified. 
C)  Providing public set and get functions does allow clients of the class to access hidden data, but only indirectly.

Question 5

A default constructor has how many parameters?

Accepted Answer

A)  0. 
B)  1. 
C)  2. 
D)  Variable number. 
A)  0. 
B)  1. 
C)  2. 
D)  Variable number.

Question 6

When a client code programmer uses a class whose implementation is in a separate file from its interface, that implementation code is merged with the client's code during the:

Accepted Answer

A)  Programming phase. 
B)  Compiling phase. 
C)  Linking phase. 
D)  Executing phase. 
A)  Programming phase. 
B)  Compiling phase. 
C)  Linking phase. 
D)  Executing phase.

Question 7

Every object of the same class:

Accepted Answer

A)  Gets a copy of every member function and member variable. 
B)  Gets a copy of every member variable. 
C)  Gets a copy of every member function. 
D)  Shares pointers to all member variables and member functions. 
A)  Gets a copy of every member function and member variable. 
B)  Gets a copy of every member variable. 
C)  Gets a copy of every member function. 
D)  Shares pointers to all member variables and member functions.

Question 8

The assignment operator =) can be used to:

Accepted Answer

A)  Test for equality. 
B)  Copy data from one object to another. 
C)  Compare two objects. 
D)  Copy a class' member functions. 
A)  Test for equality. 
B)  Copy data from one object to another. 
C)  Compare two objects. 
D)  Copy a class' member functions.

Question 9

Given the class definition:
Class CreateDestroy
{
Public:
CreateDestroy) { cout << "constructor called, "; }
~CreateDestroy) { cout << "destructor called, "; }
};
What will the following program output?
Int main)
{
CreateDestroy c1;
CreateDestroy c2;
Return 0;
}

Accepted Answer

A)  constructor called, destructor called, constructor called, destructor called, 
B)  constructor called, destructor called, 
C)  constructor called, constructor called, 
D)  constructor called, constructor called, destructor called, destructor called, 
A)  constructor called, destructor called, constructor called, destructor called, 
B)  constructor called, destructor called, 
C)  constructor called, constructor called, 
D)  constructor called, constructor called, destructor called, destructor called,

Question 10

In the UML, the top compartment of the rectangle modeling a class contains:

Accepted Answer

A)  The class's name. 
B)  The class's attributes. 
C)  The class's behaviors. 
D)  All of the above. 
A)  The class's name. 
B)  The class's attributes. 
C)  The class's behaviors. 
D)  All of the above.

Question 11

A header file is typically given the filename extension:

Accepted Answer

A)  .h 
B)  .hdr 
C)  .header 
D)  .cpp 
A)  .h 
B)  .hdr 
C)  .header 
D)  .cpp

Question 12

A client changing the values of private data members is:

Accepted Answer

A)  Only possible by calling private member functions. 
B)  Possible using public functions and references. 
C)  Never possible. 
D)  Only possible if the private variables are not declared inside the class. 
A)  Only possible by calling private member functions. 
B)  Possible using public functions and references. 
C)  Never possible. 
D)  Only possible if the private variables are not declared inside the class.

Question 13

The compiler will implicitly create a default constructor if:

Accepted Answer

A)  The class does not contain any data members. 
B)  The programmer specifically requests that the compiler do so. 
C)  The class does not define any constructors. 
D)  The class already defines a default constructor. 
A)  The class does not contain any data members. 
B)  The programmer specifically requests that the compiler do so. 
C)  The class does not define any constructors. 
D)  The class already defines a default constructor.

Question 14

A default constructor:

Accepted Answer

A)  Is a constructor that must receive no arguments. 
B)  Is the constructor generated by the compiler when no constructor is provided by the programmer. 
C)  Does not perform any initialization. 
D)  Both a) and b). 
A)  Is a constructor that must receive no arguments. 
B)  Is the constructor generated by the compiler when no constructor is provided by the programmer. 
C)  Does not perform any initialization. 
D)  Both a) and b).

Question 15

Variables defined inside a member function of a class have:

Accepted Answer

A)  File scope. 
B)  Class scope. 
C)  Block scope. 
D)  Class or block scope, depending on whether the binary scope resolution operator ::) is used. 
A)  File scope. 
B)  Class scope. 
C)  Block scope. 
D)  Class or block scope, depending on whether the binary scope resolution operator ::) is used.

Exam 9: Classes

What type of member functions allow a client of a class to assign values to private data members?

The type of function a client would use to check the balance of a bank account would be:

Which of the following statements about separating a class's interface and implementation is not true?

Which of the following statements is false?

A default constructor has how many parameters?

When a client code programmer uses a class whose implementation is in a separate file from its interface, that implementation code is merged with the client's code during the:

Every object of the same class:

The assignment operator =) can be used to:

Given the class definition: Class CreateDestroy { Public: CreateDestroy) { cout << "constructor called, "; } ~CreateDestroy) { cout << "destructor called, "; } }; What will the following program output? Int main) { CreateDestroy c1; CreateDestroy c2; Return 0; }

In the UML, the top compartment of the rectangle modeling a class contains:

A header file is typically given the filename extension:

A client changing the values of private data members is:

The compiler will implicitly create a default constructor if:

A default constructor:

Variables defined inside a member function of a class have:

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Introduction to C Programming

Control Statements, Part 1

Control Statements, Part 2

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Arrays and Vectors

Pointers and Pointer-Based Strings

Sequential-Access Files

Classes: a Deeper Look, Part 2

Operator Overloading; String and Array Objects

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Templates

Stream Inputoutput

Exception Handling

File Processing

Class String and String Stream Processing

Searching and Sorting

Data Structures

Standard Template Library Stl

Bits, Characters, C Strings and Structs

Boost Libraries, Technical Report 1 and C0x

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ATM Case Study, Part 2: Implementing an Object-Oriented Design

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