public class Main {
	public static void main(String[] args) {

		Member h = SocialNetwork.createChildMember("Harry");
		Member j = SocialNetwork.createTeenagerMember("Jay");
		Member g = SocialNetwork.createTeenagerMember("Grace");
		Member f = SocialNetwork.createElderlyMember("Frank");
		
		h.makeFriend(j);
		h.makeFriend(g);
		j.makeFriend(g);
		j.makeFriend(f);
		
		h.displayScoreAndFriends(); //Output: Harry (20) is a friend of Jay Grace 
		j.displayScoreAndFriends(); //Output: Jay (21) is a friend of Harry Grace Frank    
		g.displayScoreAndFriends(); //Output: Grace (11) is a friend of Harry Jay
		f.displayScoreAndFriends(); //Output: Frank (10) is a friend of Jay

		h.changeStatus(new Teenager());
		g.changeStatus(new Adult());
		h.makeFriend(f);
		h.displayScoreAndFriends(); //Output: Harry (21) is a friend of Jay Grace Frank    
		j.displayScoreAndFriends(); //Output: Jay (21) is a friend of Harry Grace Frank    
		g.displayScoreAndFriends(); //Output: Grace (20) is a friend of Harry Jay
		f.displayScoreAndFriends(); //Output: Frank (20) is a friend of Jay Harry
	}
}