Question

How to use object pointer with virtual method and multiple inheritance in C++

Answer 1

#include <iostream>

using std::cout;
using std::endl;

class base {
public:
	virtual void show(void) 	{
		cout << "class base" << endl;
	}
};

class derived1 : public base {
public:
	void show(void)
	{
		cout << "class derived1" << endl;
	}
};

class derived2 : public derived1 {
public:
	void show(void)
	{
		cout << "class derived2" << endl;
	}
};

int main(void)
{
	base *p, b;
	p = &b;        
	p->show();

	derived1 d1;
	p = &d1;    
	p->show();

	derived2 d2;
	p = &d2;    
	p->show();
}



/*
run:

class base
class derived1
class derived2

*/

 

70+ SQL courses for beginners and professionals