Textbook in PDF format

Take the first step in raising your coding skills to the next level, and test your Java knowledge on tricky programming tasks, with the help of the pirate Captain CiaoCiao. This is the first of two volumes which provide you with everything you need to excel in your Java journey, including tricks that you should know in detail as a professional, as well as intensive training for clean code and thoughtful design that carries even complex software.
Features
About 200 tasks with commented solutions on different levels
For all paradigms: object-oriented, imperative, and functional
Clean code, reading foreign code, and object-oriented modeling
With numerous best practices and extensively commented solutions to the tasks, these books provide the perfect workout for professional software development with Java