A class that contains at least one pure virtual function is called as
pure class
abstract class
base class
derived class
Correct Answer :
B. abstract class
Related Questions
Constructor returns void type value.
True
False
A function that is called automatically when an object is destroyed is known as
instantiation
function prototype
constructor
destructor
When accessing a structure member, the identifier to the left of the dot operator is the name of
Structure member
Structure tag
Structure variable
The keyword struct.
The member of a structure can be directly accessed by
->
dot operator
::
>>
Sharing of common information are achieved by the concept of
Virtual copying
Inheritance
Encapsulation
None of these
The new operator always returns a void pointer.
True
False
this' pointer has to be used while accessing data members in a member function.
True
False
A class that contains at least one pure virtual function is called as
pure class
abstract class
base class
derived class
Inline function specifier reduces the overheads associated with a normal function call.
True
False
The members of a class by default are private.
True
False
this' is an implicit pointer.
True
False
ios containes a pointer to streambuf.
True
False
In C++, identifiers have to be declared at the beginning of the blocks.
True
False
_____________ operator must have one class object
+
new
all
None of these
Operator overloading is
Making C++ operators work with objects
Making C++ operators more then they can handle
Giving new meaning to existing c++ operators
Making new C++ operators
A direct access file is:
A file in which recoreds are arranged in a way they are inserted in a file
A file in which records are arranged in a particular order
Files which are stored on a direct access storage medium
None of the above
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
If a friend function is declared inside a class it can access all data members of the class.
True
False
A variable defined within a block is visible
From the point of definition onwards in the program
From the point of definition onwards in the function
From the point of definition onwards in the block
Throughout the function
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
The signature of a function is
The return type
The number and type of arguments
The class of a function
None of the above
_______ argument(s) are passed in case of binary overloaded operators.
Two
One
No
None of the above
In a class, only the member function can access data, which is not accessible to outside. This feature is called:
Data security
Data hiding
Data manipulation
Data definition
Pick out the most appropriate statement from the following
references are pointers
array of references can be created
you can not reference a reference variable
all of the above
Overloaded functions
Are a group of functions with the same name
All have the same number and types of arguments
Make life simpler for programmer
May fail unexpectedly due to stress
The binding that binds a function call at run time is called
early binding
run time binding
late binding
linking
The template function declaration specifies
template class
a generic class
exception
identifier
The ?: can be used to replace
if-else statement
wild cards
no meaning in C++
returns the value
When you overload an arithmetic assignment operator, the result
Goes in the object to the right of the operator
Goes in the object to the left of the operator
Goes in the object of which the operator is a member
Must be returned
A destructor can have a return type.
True
False