// staticchecking/DogsAndRobots.cpp

// (c)2017 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

#include <iostream>

using namespace std;

class Dog {

public:

void talk() { cout << "Arf!" << endl; }

void reproduce() {}

};

class Robot {

public:

void talk() { cout << "Click!" << endl; }

void oilChange() {}

};

template<class T> void speak(T speaker) {

speaker.talk();

}

int main() {

Dog d;

Robot r;

speak(d);

speak(r);

}

/* Output:

Arf!

Click!

*/