Hi Folks,
I have one basic query on constructors and abstract classes..
My query is :
why do we require constructor in abstract classes? One reason could be if
we have any member variables in abstract classes , to initialize them we can
use.. but when that constructor is called , that means an object for that class
is created . which implies an object for abstract class is created which
according to theroy is error as abstract classes are non instantiable.
Please pull me out from this confusion..
Code exm:
// Constructor$AbsCls.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include<stdio.h>
#include<iostream>
using namespace std;
class abscls
{
public:
int x;
abscls()
{
x = 30;
cout<<"I m in constructor "<<endl;
}
virtual void show()=0;
};
class absclsder:public abscls
{
public:
int y;
absclsder()
{
cout<<"I m in abstract class der cls"<<endl;
}
void show()
{
cout<<"I m in show of der"<<endl;
}
};
int _tmain(int argc, _TCHAR* argv[])
{
class absclsder obj;
return 0;
}
Thx,
--Gopi
Add more friends to your messenger and enjoy! Go to
http://messenger.yahoo.com/invite/
[Non-text portions of this message have been removed]
