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Succeed on the Java SE 21 Developer certification exam on your first attempt. In the OCP Oracle Certified Professional Java SE 21 Developer Study Guide: Exam 1Z0-830, a team of expert Java developers and trainers delivers a focused and authoritative roadmap to the newly updated Java SE 21 Developer certification exam (1Z0-830). The authors explain key concepts from the test that you can also apply to a new or existing Java development role, ensuring you obtain new skills, sharpen old ones, and discover skills you never knew you had. From writing methods that utilize pattern matching to building applications with virtual threads, you'll find everything you need to know about Java development to perform well on the test and at your day job. 

The book also includes complementary access to Sybex's superior online interactive learning environment and test bank, which offers hundreds of practice exam questions, electronic flashcards, and a searchable glossary of the most important terms readers need to understand. Perfect for anyone preparing for the challenging OCP Java SE 21 Developer exam, this book will also earn a prominent place on the desks of junior and senior programmers who use Java on a daily basis. It's an ideal resource and quick reference to help you quickly find the information you need immediately, reduce test anxiety on the certification exam, and assist you in your day-to-day work as a Java developer. 

You'll also get: 
- Handle date, time, text, numeric, and Boolean values 
- Understand and control program flow 
- Utilize Java's object-oriented approach to programming 
- Handle exceptions and errors 
- Work with streams and Lambda expressions 
- Package and deploy Java code 
- Use the Java I/O API 

About the Oracle Certified Professional Developer certification: The OCP Oracle Certified Professional Java SE 21 Developer certification validates advanced understanding of Oracle concepts and skills as well as experience applying them in the real world.

Actual product image OCP Oracle Certified Professional Java SE 21 Developer Study Guide (English, Selikoff Scott, Boyarsky Jeanne, 2024)

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