gistfile1.cpp

#include <iostream>

class Dad
{
public:
  Dad()
  {
    this->hello();
  }

  virtual void hello()
  {
    std::cout << "Hello from dad" << std::endl;
  }

  void init()
  {
    this->hello();
  }
};

class Kid : public Dad
{
public:
  Kid() : Dad()
  {
    this->init();
  }

  void hello()
  {
    std::cout << "Hello from kid" << std::endl;
  }
};

int main()
{
  Kid a;
}