Revealing Interfaces

In nearly every OO application there’s at least one large class. By large, I mean a class that has 15 or more methods. We expect classes to have focus and it’s hard to make the case that a class with that many methods is about one thing. There will be some sort of grouping. Sometimes it’s explicit in the names of the methods, sometimes it’s not. Classes like this can be hard to understand. When we do try to understand them, we often inadvertently make it harder for ourselves - we concentrate...