// generics/DogsAndRobots.cpp
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.

class Dog {
public:
  void speak() {}
  void sit() {}
  void reproduce() {}
};

class Robot {
public:
  void speak() {}
  void sit() {}
  void oilChange() {
};

template<class T> void perform(T anything) {
  anything.speak();
  anything.sit();
}

int main() {
  Dog d;
  Robot r;
  perform(d);
  perform(r);
}