// generics/DogsAndRobots.cpp

// (c)2021 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 speak() { cout << "Arf!" << endl; }

void sit() { cout << "Sitting" << endl; }

void reproduce() {}

};

class Robot {

public:

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

void sit() { cout << "Clank!" << endl; }

void oilChange() {}

};

template<class T> void perform(T anything) {

anything.speak();

anything.sit();

}

int main() {

Dog d;

Robot r;

perform(d);

perform(r);

}

/* Output:

Arf!

Sitting

Click!

Clank!

*/