The author pursues the pedagogical principle saying that those items considered as the most important should be presented as soon as possible. Therefore he leads the readers to apply the proper design of the architecture of the created program and to avoid common mistakes since the very beginning. For designing the programs, the development environment BlueJ is used, which is proposed specially for the beginners and which enables explaining, demonstrating and programming a number of basic architectonic constructs without leaving the architectonic level and degrading to the code level. The book is divided into three parts. The first one deals with the explanation of basic constructs of the object oriented programming and all proposed programs are created by the code-generator incorporated in BlueJ. The second part repeats the explained constructs and the readers can learn how to code the proposed program similarly as was done by the generator in the first part. The third part presents constructs which are beyond the bounds of abilities of the used code-generator, and therefore the readers have to program them themselves.
Despite that, the explanation core keeps in the level of architecture. The book is determined above all for complete beginners. However, the experience proved that even the intermediate programmers can find a lot of interesting and informative in it.
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