// demo of favoring composition over inheritance and construction with dependency injection
class Movement {
public void move();
};
class Wheel: Movement {};
class Turbine: Movement {};
class Control {
public void control();
};
class Handle: Control {};
class Dashboard: Control {};
class Handlebar: Control {};
class Vehicle {
Movement movement;
Control controll;
Vehicle(Movement m, Control c) {
this.movement = m;
this.control = c;
}
};
class Car: Vehicle {};
class MotorBike: Vehicle {};
class Jet: Vehicle {};
int main () {
Vehicle vehicles[] = {
new Jet (new Turbine(), new Dashboard()),
new Car (new Wheel(), new Handle()),
new MotorBike(new Wheel(), new Handlebar())
};
for (v: vehicles) {
v->move();
}
return 0
}
