c++ inheritance example

class.cpp

#include <iostream>

using namespace std;
class Base
{
	public:
		void foo1() {
			cout << "BASE foo1"  << endl;
		}
		virtual void foo2() {
			cout << "Base foo2" << endl;
		}
};

class Derived : public Base
{
public:
	void foo1() {
		cout << "Derived foo1" << endl;
	}
	void foo2(){
		cout << "Derived foo2" << endl;
		}
};

/**
* result of main is
* BASE foo1
* Derived foo2
* Derived foo2
* Derived foo2
**/
int main()
{
	Base *bar = new Derived();
	bar->foo1();
	bar->foo2();
	Derived *bar2 = new Derived();
	bar2->foo1();
	bar2->foo2();
	return 0;
}