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what is virtual function?
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Answer Posted / gomathisivaram
The virtual function is nothing but the function in the
base class with the virtual keyword, that allows us to
derive only once in the class which is going to accsess it
while it is the child of two different classes which are
the child of the same base class.This is nothing but the
dynamic binding.
| Is This Answer Correct ? | 18 Yes | 10 No |
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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.
write a C++ program for booking using constructor and destructor.
i=20;k=0;
for(j=1;k-i;k+=j<10?4:3)
{
cout< Can main method override? How do you define social class? c++ program to swap the objects of two different classes Question In a class, there is a reference or pointer of an
object of
another class embedded, and the memory is either allocated
or assigned to the new object created for this class. In
the constructor, parameters are passed to initialize the
data members and the embedded object reference to get
inialized. What measures or design change should be advised
for proper destruction and avioding memory leaks, getting
pointers dangling for the embedded object memory
allocation? Please suggest.
Question Submitted By :: Sunil Kumar
I also faced this Question!! Rank Answer Posted By
Re: In a class, there is a reference or pointer of an
object of another class embedded, and the memory is either
allocated or assigned to the new object created for this
class. In the constructor, parameters are passed to
initialize the data members and the embedded object
reference to get inialized. What measures or design change
should be advised for proper destruction and avioding
memory leaks, getting pointers dangling for the embedded
object memory allocation? Please suggest.
Answer
# 1 use copy constructors
0 Shanthila
There is something to be taken care in destructor, in copy
constructor, suppose the memory is assigned to the embedded
member object pointer with the parameter passed value, but
if some other objects of different class also are pointing
to this memory, then if some one deletes the object then
this class member pointer object will become dangling, or
if the object is not deleted properly then there will be
memory leak. Please suggest the design change required to
handle or avoid this situation What is polymorphism explain?
