//8.2 - Using the Scope Resolution Operator - Mark Lee
//Prima Publishing
#include <iostream>
using namespace std;

class Base
{
     public:
          void display() { cout << "Hello World.\n"; }
};

class Derived : public Base
{
     public:
          void display() 
          { 
               // Executes base display() function
               Base::display();
               cout << "Goodbye World."; 
          }
};

int main(void)
{
     Derived d;
     d.display();    // Executes derived display() function
     return 0;
}