CSCI 112 Final Exam
Given a pointer p of type double, the statement p++; increments the value of p by ____ bytes.
8
____ is a "has a" relationship between classes.
Composition
____ takes place when one or more members of a class are objects of another class type.
Composition
A class can have more than one destructor.
False
A friend function of a class is a nonmember function of the class, so it cannot access the members of the class.
False
Both constructors and destructors can have parameters.
False
C++ allows users to create their own operators.
False
Dynamic variables are destroyed using the operator new.
False
If a pointer p points to a dynamic array, the elements of p can be processed using a range-based for loop.
False
If p is a pointer variable, then the statement p = p * 2; is valid in C++.
False
In C++, all operators can be overloaded for user-defined data types.
False
In C++, pointer is a reserved word.
False
In C++, pointer variables are declared using the word pointer.
False
In C++, the dereferencing operator has a higher precedence than the dot operator.
False
In composition, one or more members of a class are objects of another class type.
False
In protected inheritance, the private members of the base class are protected members of the derived class.
False
In single inheritance, a base class can create only one derived class.
False
The address of operator returns the address and value of its operand.
False
The binding of virtual functions occurs at compile time.
False
The class ios is the base class for all stream classes.
False
The member functions of a class must be public.
False
The member variables of a class must be of the same type.
False
The precedence of an operator cannot be changed, but its associativity can be changed.
False
The public members of a base class can only be inherited as public members in the derived class.
False
The statement delete p; deallocates the variable pointer p.
False
When writing the definition of a friend function, the keyword friend must appear in the function heading.
False
Which of the following statements is FALSE?
The derived class cannot redefine the public member functions of the base class.
Which of the following statements regarding creating executable code and running a program is TRUE?
The user must have access to the object code file.
Which of the following is not a use of the address of operator, &?
To prevent the access of private member variables out of the class.
A class can have more than one constructor.
True
Given the declaration: int *p; the statement p = new int [50]; dynamically allocates an array of 50 components of type int, and p contains the base address of the array.
True
Given the declaration: int list[10]; int *p; the statement p=list; is valid in c++.
True
If p is a pointer variable, then *p refers to the memory location to which p points.
True
If the derived class does not override a public member function of the base class, you may specify a call to that public member function by using the name of the function and the appropriate parameter list.
True
In C++, operators cannot be redefined for built-in types.
True
In C++, the return type of a function can be a pointer.
True
In a shallow copy, two or more pointers of the same type point to the same memory.
True
Suppose that x and y are classes, one of the member variables of x is an object of type y, and both classes have constructors. The constructor of x specifies a call to the constructor of y by using the object name of type y.
True
The constructor of a derived class can specify a call to the constructor of the base class in the heading of the function definition.
True
The constructor of a derived class can specify a call to the constructor of the base class using the name of the class.
True
The function that overloads an operator is called the operator function.
True
The statement delete p; deallocates the dynamic variable that is pointed to by p.
True
To redefine (or override) a member function of the base class in the derived class, the corresponding member function must have the same name, number, and type of parameters.
True
Variables that are created during program execution are called dynamic variables.
True
When the destructor of the derived class executes, it automatically invokes the destructor of the base class.
True
If a derived class overrides a public member function of the base class, you can call the base class function by using the ____.
base class name, followed by the scope resolution operator, followed by the function name and appropriate parameter list.
In C++, a pointer ____.
can be passed as a value or reference parameter
The general syntax for an object to access the members of its class is ____.
classObjectName.memberName
When you declare a pointer variable, you specify the ____ of the value to be stored in the memory location.
data type
When a program no longer needs a dynamic variable, the operator ____ is used.
delete
The ____ operator in C++ refers to the object to which its operand points.
dereferencing
C++ allows the user to pass an object of a _____ class to a formal parameter of the base class type.
derived
Like any other data type, an ADT has three things associated with it: the type name; set of operations; and the ____.
domain
To include a user-defined header file in a program, you enclose the header file between ____.
double quotation marks
Because a user must be able to look at the specification details to correctly call a function, the specification details are contained in a separate file called the _____ file.
header
A call to the base class's constructor is specified in the ____.
heading of the definition of the derived class constructor
To avoid multiple inclusions of header files in a program, which of the following preprocessor commands (with the appropriate identifiers and/or statements) should you use?
ifndef, define, endif
Because the user only needs to know what an object does, not how it does it, it is good practice to hide the details in a(n) ____ file.
implementation
Derived classes ____.
inherit the properties of base classes
In C++ terminology, a class variable is called a class object or class ____.
instance
Which of the following statements creates a two-dimensional dynamic array of four pointers in which each pointer is of type int?
int *arrayName[4];
Inheritance is an example of a(n) ____ relationship.
is-a
To simplify the accessing of a class or struct with a pointer, C++ provides the ____.
member access operator arrow
In a UML diagram, the last box contains the ____.
member functions, parameter list, and return type of the functions
In the case of composition, use the ____ name to invoke its own constructor.
member object
Unused memory space that cannot be allocated is referred to as a _____.
memory leak
A ____ function is a member function of a class that modified the values or the member variables.
mutator
When a program requires a dynamic variable, the operator ____ is used.
new
A common and simple technique to identify classes is to identify all of the nouns and verbs in the description of the problem; ____ represent the classes.
nouns
Pointer variables are initialized using the constant value 0, called the ____ pointer.
null
In OOD, a program is a collection of interacting ____.
objects
The class ofstream is directly derived from the class ____.
ostream
If the corresponding functions in the base class and the derived class have the same name but different sets of parameters, this is function ____.
overloading
In ____ polymorphism, the (data) type is left unspecified and then later instantiated.
parametric
A _____ variable is one whose content is a memory address.
pointer
By default, all members of a class are ____.
private
If a member function is only used to implement other member functions of a class and the user does not need to access the function, you should declare it as ____.
private
If a member of a class is a function, you typically use the function ____ to declare that member.
prototype
Any class member that needs to be accessed outside of the class should be declared as ____.
public
A ____ is a collection of distinct elements of the same type.
set
In ____ inheritance, a derived class is inherited from a single base class.
single
A public _____ member, function, or variable of a class can be accessed using the class name and the scope resolution operator.
static
The name of a destructor function is the ____ character followed by the class name.
tilde (~)
In a shallow copy, ____.
two or more pointers of the same type point to the same memory location
Which of the following characters appears before a desutructor's name?
~
In a UML diagram, a(n) ____ sign in front of a member name indicates that the member is a public member.
+
When the destructor of the derived class executes, it automatically invokes the destructor of the _____ class.
Base
What is the only difference between a struct and a class?
By default, all members of a struct are public, and all members of a class are private.
_____ is the ability to combine data and operations on that data in a single unit.
Encapsulation
____ is the ability to use the same expression to denote different operations.
Polymorphism
Which of the following is not a common operation performed on a list?
Rearrange in a user specified order.
The copy constructor automatically executes in three situations. Which of the following is not one of those situations?
When, as a parameter, an object is passed by reference.
When no member access specifier is included in a derived class header definition, it is assumed to be ____.
a private inheritance
A class containing one or more pure virtual functions is called a(n) ____ class.
abstract
A data type that separates the logical properties from the implementation details is called a(n) _____ data type.
abstract
Separating the design details from usage is called _____.
abstraction
In C++, the ampersand (&) is called the _____ operator.
address of
If a member of a class is a function, it can access member variables ____.
and member functions directly
The items in an ordered list are in _____ order.
ascending
A class object is ____ if it is created each time the control reaches its declaration and is destroyed when the control exits the surrounding block.
automatic
