Jeanne and I are excited to announce our new Java OCP 21 Certified Professional Study Guide is now shipping! Released by Wiley Publishing, this book teaches you all the new (and old) features of Java 21, and helps prepare those planning to take the 1Z0-830 Java 21 Certification Exam.

Are you worried your Java skills are getting outdated? Are you writing code with the same toolset you’ve been using since Java 11, Java 8, or even Java 1.4? This book is definitely for you then! It starts with the basics, incorporating all of the new languages features like pattern matching, text blocks, var, and switch expressions. After that, we add records, sealed classes, virtual threads, sequenced collections, modules, and more. Finally, we cover lambdas and streams, helping you write shorter code and easier-or-read functional code without a lot of boilerplate syntax.

Whether your fresh out of school or have been programming Java professional for over a decade, our book helps you understand how to use all of the features of Java 21. We cover each topic in detail, from the basics to advanced usage, to help you write better Java code in your daily life.

For those looking to become Java 21 certified, look no further. Our book contains 14 chapters of everything you need to prepare for the exam, including exam tips, study suggestions, and hundreds of challenging practice questions. It also includes access to Sybex’s Online Test Bank, where we’ve written 3 simulated 1Z0-830 practice tests and over 500 flashcards!

Order now for the holidays, as Amazon already has our book backordered until the second week of December!