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
Correct Answer :
A. no definition in its base class
Related Questions
If a friend function is declared inside a class it can access all data members of the class.
True
False
Dynamic memory can be allocated by the following declaration
new
volatile
static
==
Delete operator is used
To allocate storage
To deallocate storage
To delete variable name
None of the above are correct
Organizing data with methods that operate on the data and creating a new data type is called encapsulation.
True
False
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 value of 'this' pointer can be changed.
True
False
Sharing of common information are achieved by the concept of
Virtual copying
Inheritance
Encapsulation
None of these
The characteristic that data can be manipulated only through member functions that are part of the class is called
Encapsulation
Data dependency
Inheritance
Instantiation
"[]" Operator is a unary operator.
True
False
The binding that binds a function call at run time is called
early binding
run time binding
late binding
linking
What is the output of the following program segment - for(i = 1, j = 0; i < 10; i++) j += i; cout <<i<<"
";
10
20
55
there is an error in the program
Member function cannot be called from within a constructor.
True
False
Which of the following can legitimately be passed to a function?
A constant
A variable
A structure
A header file
In C++, the stream base class is
iostream
iofstream
ios
stdio
A base class is inherited by
derived class
inline function
constructor
none of the above
The ?: can be used to replace
if-else statement
wild cards
no meaning in C++
returns the value
new operator is used
To dynamically allocate storage
To statically allocate storage
To allocate storage for a new variable
None of the above are correct
A destructor can have a return type.
True
False
The following syntax is valid. void inline gram_ panchayat :: show_gram_ panchayat_info().
True
False
_______ argument(s) are passed in case of binary overloaded operators.
Two
One
No
None of the above
this' is an implicit pointer.
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
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
You can read input that consists of multiple lines of text using
The normal cout<< combination
The cin.get() function with one argument
The cin.get() function with two argument
The cin.get() function with three argument
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
In C++, identifiers have to be declared at the beginning of the blocks.
True
False
The && and || operators
Compare two numeric values
Combine two numeric values
Compare two Boolean values
Combine two Boolean values
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
The signature of a function is
The return type
The number and type of arguments
The class of a function
None of the above
iostream is inheried from istream, ostream and ios class.
True
False