main.cpp

this a good book.

#include <iostream>
using namespace std;

class Planet{
protected:
	//* * 1 * *
	
public:
	Planet(double d,int r){
		distance = d;
		revolve = r;
	}
};
class Earth:public Planet{
	double circumference;
public:
	//* * 2 * *
	
	//* * 3 * *
	
};
void main()
{
	Earth obj(9300000,365);
	obj.show();
}