public class SimpleClient {

	public static void main(String[] args) {
		Person p1 = new SmartPerson();
		SmartPerson p2 = new SmartPerson("Marco Pantani");
		Person p3 = new OsuStudent();
		SmartPerson p4 = new OsuStudent("Galileo Galilei", 14);

		System.out.println(p1.showInfo()); // calls SmartPerson's method
		System.out.println(p2.showInfo()); // calls SmartPerson's method
		System.out.println(p3.showInfo()); // calls OsuStudent's method
		System.out.println(p4.showInfo()); // calls OsuStudent's method

		System.out.println("=======");

		Person[] csePeople = new Person[10];
		for (int i = 0; i < 5; i++) {
			csePeople[i * 2] = new SmartPerson("Fausto " + i + " Coppi");
			csePeople[i * 2 + 1] = new OsuStudent("Leonardo da Vinci", i);
		}
		for (Person p : csePeople) {
			System.out.println(p.showInfo());
		}

		System.out.println("Now the same loop, casting to base class:");
		for (Person p : csePeople) {
			System.out.println(((SmartPerson) p).showInfo());
		}
	}

}