Java 21 - Kompletní příručka jazyka – Pecinovský Rudolf (2023)

The guide explains in detail the features of the twenty-first version of the Java language. It takes the reader through all the nooks and crannies of the language, from the absolute basics to advanced constructs. It covers all elements of the language, including those that are included only as preliminary and will become standard components in future versions. At the same time, it shows how to activate and test these preliminary constructs. ***** The explanation is designed so that the book serves as both a textbook and a reference guide. It will therefore be useful for both beginners and advanced programmers, who will find explanations for the causes of various problems they encounter daily, along with solutions. It also explains in detail topics that other textbooks overlook due to space constraints, forcing programmers to sometimes resort to trial and error. ***** The described constructs are demonstrated in the JShell environment, which allows for simple and effective demonstrations of the functionality of most explained topics without unnecessary fluff that is required when using traditional methods. This way, anyone can easily try out the constructs and experiment further without having to write auxiliary code with test methods and control prints and conduct separate...