Coding more efficiently means writing independent components based on a common foundation. It means really understanding object- oriented programming and design patterns. In this book, I will show you how to use design patterns by building an application from the ground up. You will see how to effectively integrate the object-oriented concepts of encapsulation, modularity, polymorphism and inheritance with some of the more common design patterns, such as Singleton, Factory, Mediator, Faade and Listener. By the end of the book, you will be armed with the knowledge of how to build structurally sound reusable components.