Update:

14/02/2021, the books website http://www.mindview.net/Books/TIPatterns/ is no longer online. We changed the download link to a mirror.

Book excerpts:

Thinking in Patterns with Java originally started as a chapter on design patterns in the other Bruce Eckel's books -- Thinking in C++ and Thinking in Java. That's why this book is not an introductory book. The readers are assumed to have worked their way through Thinking in Java or an equivalent text before coming to this book, therefore have more than just a grasp of the syntax of Java. The readers should have a good understanding of objects and what they?re about, including polymorphism.

On the other hand, by going through this book the readers are going to learn a lot about object-oriented programming by seeing objects used in many different situations. If the readers' knowledge of objects is rudimentary, it will get much stronger in the process of understanding the designs in this book.