public class TestDerived {
  public static void main(String[] args) {
    Dog aDog = new Dog("Fido", "Chihuahua");                           // Create a dog
    Dog starDog = new Dog("Lassie");                                   // Create a Hollywood dog
    System.out.println(aDog);                                          // Let's hear about it
    System.out.println(starDog);                                       // and the star
  }
}