|parallel arrays|| "backward compatible"|
(ie, doesn't break other clients)
|responsibility for keeping indices "matched up"|
| get source code for ||we know how to do it|| |
Wouldn't it be handy if FilledOval had a method to center itself on a location?
| cut-n-paste a new class with additional instance variables & methods
|| OR..... use INHERITANCE
|| Syntax to learn and keep straight