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OCP Oracle Certified Professional Java SE 25 Developer Study Guide (Sybex Study Guide)
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Prepare for the OCP Java SE 25 exam and build job-ready skills
OCP Oracle Certified Professional Java SE 25 Developer Study Guide delivers focused, efficient preparation for the Oracle Certified Professional Java SE 25 Developer exam. Written by Scott Selikoff and Jeanne Boyarsky, two experienced Java developers and certification authors, this guide covers every exam objective while reinforcing the practical programming skills that employers expect from certified Java professionals in production environments.
Each chapter includes review questions, exam essentials summaries, and real-world scenarios that connect exam topics to on-the-job Java development. Coverage spans core Java fundamentals, object-oriented design, functional programming with lambdas and streams, concurrency with virtual threads, modular applications, and database access. Hands-on exercises throughout the guide reinforce both conceptual understanding and applied coding proficiency.
Readers will also find:
- Thorough coverage of all OCP Java SE 25 exam objectives, including class creation with Flexible Constructor Bodies, writing programs as Compact Source Files with Instance Main Methods, making decisions with unnamed variables, and coding with Stream Gatherers
- Practical guidance on leveraging virtual threads to improve performance and writing modern, maintainable Java code for real-world applications
- Complimentary access to the Sybex online learning environment, with a test bank, practice tests, electronic flashcards, and a searchable glossary
OCP Oracle Certified Professional Java SE 25 Developer Study Guide is an ideal resource for Java developers seeking Oracle certification, candidates hoping to eliminate test anxiety and improve their chances on the certification exam, software engineers validating their Java SE 25 knowledge, and IT professionals preparing to demonstrate current Java skills to employers and advance their careers.
- ISBN-101394434278
- ISBN-13978-1394434275
- Edition1st
- PublisherSybex
- Publication dateFebruary 16, 2027
- LanguageEnglish
- Print length1040 pages
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Product details
- Publisher : Sybex
- Publication date : February 16, 2027
- Edition : 1st
- Language : English
- Print length : 1040 pages
- ISBN-10 : 1394434278
- ISBN-13 : 978-1394434275
- Item Weight : 1.11 pounds
- Best Sellers Rank: #490,716 in Books (See Top 100 in Books)
- #5 in Oracle Certification
- #66 in Java Programming
- #244 in Software Design & Engineering
About the authors

Jeanne Boyarsky is a Java Champion and has worked as a Java developer for over 20 years at a bank in New York City where she develops, mentors, and conducts training. Besides being a senior moderator at CodeRanch in her free time, she works on the forum codebase. Jeanne also mentors the programming division of a FIRST robotics team, where she works with students just getting started with Java.
Jeanne got her Bachelor of Arts in 2002 and her Master's in Computer Information Technology in 2005. She enjoyed getting her Master's degree in an online program while working full time. This was before online education was cool! Jeanne is also a Distinguished Toastmaster and a Scrum Master.

Scott Selikoff is a professional software consultant, author, and owner of Selikoff Solutions, LLC, which provides software development solutions to businesses in the tri-state New York City area. Skilled and certified in a plethora of software languages and platforms, Scott specializes in database-driven systems, web-based applications, and service-oriented architectures. He is the author 7 best-selling Java books, which helps software developers improve their skills and acquire a deeper understanding of Java.
Scott has spoken at numerous conferences over years and enjoys helping transform junior programmers into more experienced software developers. He is a leading member of the Garden State Java User Group organization, a senior moderator on the hugely popular CodeRanch forum, and operates Down Home Country Coding, a blog devoted to exploring programming issues of the day.
As someone with a deep love of education, Scott has always enjoyed teaching others new concepts. He's given lectures at Cornell University and Rutgers University, as well as conferences including Oracle CodeOne and The Server Side Java Symposium.
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