Public data members can be accessed
Only from the base class itself
Both form the base class and from its derived classes
From the class which is friend of the base class
None of the above are correct
Correct Answer :
B. Both form the base class and from its derived classes
Related Questions
In C++, the keyword auto can be used for
Automatic assignment of data to object during instantiation
Automatic call of a function
To declare a local variable
It is not a keyword in C++
Dynamic memory can be allocated by the following declaration
new
volatile
static
==
Classes are useful because they
Are removed from memory when not in use
Permit data to be hidden from other classes
Bring together all aspects of an entity in one place
Can closely model objects in the real world
A pure virtual function is a virtual function that has
no definition in its base class
a definition in its base class
a definition in at least one derived class
definition in base class and at least one derived class
The scope resolution operator is -
::
;
<<
->
The member of a structure can be accessed through a pointer by
->
dot operator
::
>>
Which of the following is not a component of file system
Access method
Auxiliary storage management
Free integrity mechanism
None of the above
One of the important features of an abstract class is
it need not have any object
it should be used only as a derived class
it need not have any members
none of the above
Static data member occurs in only class scope.
True
False
A normal C++ operator that acts in a special way on newly defined data types is said to be
Glorified
Encapsulated
Classified
Overloaded
Organizing data with methods that operate on the data and creating a new data type is called encapsulation.
True
False
The declaration int **var1; shows that
var1 can not be accessed
var1 is a pointer to a pointer of type int
var1 is a protected data type of integer
this type declaration shows an error
A base class is inherited by
derived class
inline function
constructor
none of the above
In case of nested class, enclosing class can directly access the private data member of nested class.
True
False
A constructor cannot be explicitly called.
True
False
Which of the following is true about const member functions?
const members can be invoked on both const as well as nonconst objects
const members can be invoked only on const objects and not on nonconst objects
nonconst members can be invoked on const objects as well as nonconst objects
none of the above
When a language has the capacity to produce new data type, it is said to be
Reprehensible
Encapsulated
Overload
Extensible
The getch() library function
Returns a character when any key is pressed
Returns a character when ENTER is pressed
Display a character on the screen when a key is pressed
Does not display a character on the screen
The library function exit() causes an exit from
The loop in which it occurs
The block in which it occurs
The function in which it occurs
The program in which it occurs
A destructor can have a return type.
True
False
What is the value of Friday in the following - enum days { Monday, Tuesday, Wednesday = -1, Thursday, Friday, Saturday = 6, Sunday}
1
5
0
-3
Sharing of common information are achieved by the concept of
Virtual copying
Inheritance
Encapsulation
None of these
Which of the following relationship is known as inheritancerelationship?
‘has-a’ relationship
‘is-a’ relationship
association relationship
none of the above
Data objects can be initialized when allocating memory using 'new'.
True
False
The binding that binds a function call at run time is called
early binding
run time binding
late binding
linking
Objects get destroyed in the reverse order as they are created.
True
False
iostream is inheried from istream, ostream and ios class.
True
False
this' pointer has to be used while accessing data members in a member function.
True
False
The break statement causes an exit
Only from the innermost loop
Only from the innermost switch
From all loops and switch
Only from the innermost loops or switch
The members of a class can be made private by
declaring them private
by default they are private
by declaring them in the beginning of the program immediately after main()
they are always public