Practice Objects and Classes –
What will be the output of following program?
#include<iostream>
using namespace std;
class base {
int arr[10];
};
class b1: public base { };
class b2: public base { };
class derived: public b1, public b2 {};
int main(void)
{
cout << sizeof(derived);
return 0;
}
Practice Objects and Classes –
Predict the output of following program?
#include<iostream>
using namespace std;
class Base
{
public:
virtual void show() { cout<<" In Base
"; }
};
class Derived: public Base
{
public:
void show() { cout<<"In Derived
"; }
};
int main(void)
{
Base *bp, b;
Derived d;
bp = &d;
bp->show();
bp = &b;
bp->show();
return 0;
}
Practice Objects and Classes –
What is the output of following program?
#include<iostream>
using namespace std;
class Base
{
public:
virtual void show() { cout<<" In Base
"; }
};
class Derived: public Base
{
public:
void show() { cout<<"In Derived
"; }
};
int main(void)
{
Base *bp = new Derived;
bp->show();
Base &br = *bp;
br.show();
return 0;
}