Now, I am no expert in OOP or software design, but here’s a philosophy which might help you make the most of what you know about OOP and software design.

"Well, I went pretty fine on my Object-Oriented experience. I've learned something about polymorphism, inheritance, encapsulation and now I really know how to extend a class! I'm ready for developing cool object-oriented applications." But what about the design? No, no... I don't mean that design where you place the squares and circles in their places, draw ...