[Ch10b] Be the compiler exercise changed so that the generic objects are passed into a method

public class BeTheCompiler {

  public static void main(String[] args) {

//    ArrayList<Dog> dogs1 = new ArrayList<Animal>();

//

//    ArrayList<Animal> animals1 = new ArrayList<Dog>();

//

//    List<Animal> list = new ArrayList<Animal>();

//

//    ArrayList<Dog> dogs = new ArrayList<Dog>();

//

//    ArrayList<Animal> animals = dogs;

//

//    List<Dog> dogList = dogs;

//

//    ArrayList<Object> objects = new ArrayList<Object>();

//

//    List<Object> objList = objects;

    takeAnimals(new ArrayList<Animal>());

//    takeDogs(new ArrayList<Animal>());

//

//    ArrayList<Object> objs = new ArrayList<Dog>();

//    takeAnimals(new ArrayList<Dog>());

    takeDogs(new ArrayList<>());

    List<Dog> dogs = new ArrayList<>();

    takeDogs(dogs);

    takeSomeAnimals(new ArrayList<Dog>());

    takeSomeAnimals(new ArrayList<>());

    takeSomeAnimals(new ArrayList<Animal>());

    List<Animal> animals = new ArrayList<>();

    takeSomeAnimals(animals);

    List<Object> objects = new ArrayList<>();

//    takeObjects(objects);

//

//    takeObjects(new ArrayList<Dog>());

    takeObjects(new ArrayList<Object>());

  }

  private static void takeDogs(List<Dog> dogs) {

    // do something

  }

  private static void takeAnimals(List<Animal> animals) {

    // do something

  }

  private static void takeSomeAnimals(List<? extends Animal> animals) {

    // do something

  }

  private static void takeObjects(ArrayList<Object> objects) {

    // do something

  }

}