Question { L&T, 10553 }

what is virtual destructor

Answer

Normally virtual destructor is used to destroy a base class
object without knowing it's type...

Question { 94046 }

To generate the series 1+3+5+7+... using C program

Answer

#include"stdio.h"
#include"conio.h"
void main()
{
int s=0;
for(int i=1;i<100;i++)
{
if(i%2==0)
continue;
s=s+i;
}
printf("The answer is...%d",s);
getch();
}

Question { Symphony, 9170 }

What is the differances between a abstract calss and
interface

Answer

An abstract class holds both method prototpypes and method
definitions also...But it is not in the case of
interface..It can contain only protypes.. It should be
defined only where it is implemented...