import java.util.*;

class Program {
  public static void main(String[] args) {
    ArrayList<Fruit> bag = new ArrayList<Fruit>();

    bag.add(new Orange());
    bag.add(new Apple());
    bag.add(new Orange());
    bag.add(new Apple());
    bag.add(new Apple());

    System.out.println( bag );

    Collections.sort( bag );

    System.out.println( bag );

    Probe probe = new Probe();

    Collections.sort( bag, probe );

    System.out.println( bag );

  }
}