#include <iostream.h>


class parent
{
protected:

   int i2;

   void f2()
   {
      cout << "protected parent method" << endl;
   }
};

class child : public parent
{
public:

   void worker()
   {
      i2 = 1;

      f2();
   }
};

int main(int argc, char **argv)
{
   child x;
   parent y;

   x.worker();

   // y.f2();        // Forbidded...
}