Question

How to initialize base class member variables from derived class in C++

Answer 1

#include <iostream>

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

class Base {
	int a, b;
public:
	Base(int _a, int _b) {
		a = _a;
		b = _b;
	}
	void print_base() {

		cout << a << ' ' << b << endl;
	}
};

class Derived : public Base {
	int c;
public:
	Derived(int _c, int _a, int _b) : Base(_a, _b) {
		c = _c;
	}
	void print_derived() {
		cout << c << ' '; 
		print_base();
	}
};

int main()
{
	Derived o(189, 25, 17);

	o.print_derived();

	return 0;
}

/*
run:

189 25 17

*/

 

70+ SQL courses for beginners and professionals