Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / qapoo
A function is declared virtual in base class when u are
having same functions in both base and derived classes and
you want to access both the functions with same function
call and its done using base class pointer.
e.g
class base
{
public:
void show(){cout<<"hi"};
};
class derived:pubic base
{
public:
void show(){cout<<"bye";}
};
int main()
{
base *ptr;
base b;
derived d;
ptr=&b;
ptr->show();//base class fn is called
ptr=&d;
ptr->show();//derived class fn is called
return 0;
}
| Is This Answer Correct ? | 7 Yes | 3 No |
Post New Answer View All Answers
Can an interface inherit a class?
What is the difference between procedural programming and oops?
What are main features of oop?
just right the logic of it 1--> If few people are electing then every time ur candidate should win 2--> arrange books in box, if box carry weight == books weight then take another box..... find the no of box required.
is there any choice in opting subjects like 4 out of 7
What is inheritance in oop?
What is for loop and its syntax?
Why it is called runtime polymorphism?
What does I oop mean?
What is advantage of inheritance?
What is polymorphism give a real life example?
write a code for this. serial_number contained in the header of the file will be read , if this serial number is less than a previous serial number within a successfully processed file, or is the same as another serial number within a successfully processed file, or if the field contains anything other than 7 digits, then the file must error with the reason ‘Invalid SERIAL_NUMBER’.
Why do we use polymorphism?
What is difference between data abstraction and encapsulation?
What do you mean by overloading?
