Java Interface

example

public interface Car {
    public int getSpeed();
    public boolean accelerate();
}
public class Avante implements Car {
    int speed;

    @Override
    public int getSpeed() {
        return speed;
    }

    @Override
    public boolean accelerate() {
        speed += 10;
        return false;
    }

}
public class Matiz implements Car {
    int speed;

    @Override
    public int getSpeed() {
        return speed;
    }

    @Override
    public boolean accelerate() {
        speed += 20;
        return false;
    }

}
public class Drive {
    public static void main(String[] args) {
        Car avante = new Avante();
        Car matiz = new Matiz();

        drive(avante, "Avante");
        drive(matiz, "Matiz");
    }

    private static void drive(Car car, String name) {
        System.out.println(name);
        for (int i = 0; i < 10; i++) {
            car.accelerate();
            System.out.println(i + ":" + car.getSpeed());
        }
    }
}
What Else?