OCP Oracle Certified Professional Java SE 11 Developer Practice Tests Exam 1Z0-819 and Upgrade Exam 1Z0-817

NOTE: The OCP Java SE 11 Programmer I Exam 1Z0-815 and Programmer II Exam 1Z0-816 have been retired (as of October 1, 2020), and Oracle has released a new Developer Exam 1Z0-819 to replace the previous exams. The Upgrade Exam 1Z0-817 remains the same.



Improve your preparation for the OCP Java SE 11 Developer exam with these comprehensive practice tests 

OCP Oracle Certified Professional Java SE 11 Developer Practice Tests: Exam 1Z0-819 and Upgrade Exam 1Z0-817 offers readers over 1000 practice questions to help them hone their skills for the challenging 1Z0-819 exam as well as the 1Z0-817 upgrade exam. 

Covering all the objective domains that help readers master the crucial subject areas covered by the exam, OCP Oracle Certified Professional Java SE 11 Developer Practice Tests provides domain-by-domain questions as well as additional bonus practice exams to further solidify the reader’s mastery of its subjects. This book covers topics like: 

• Understanding Java Technology and Environment 
• Working with Java Operators, Primitives, and Strings 
• Creating Methods and Lambda Expressions 
• Designing Classes, Interfaces, Enums, and Annotations 
• Writing Functional Interfaces and Streams 
• Building Modules and Migrating Applications to Modules 
• Applying I/O, NIO.2, JDBC, Threads, and Concurrency 
• Secure Coding in Java SE Application 
• And much more 

Perfect for anyone studying for the OCP Java SE 11 Developer and Upgrade exams, as well as all those who wish to brush up on their Java programming skills, OCP Oracle Certified Professional Java SE 11 Developer Practice Tests:  Exam 1Z0-819 and Upgade Exam 1Z0-817 is an indispensable resource that has a place on the bookshelf of every Java enthusiast, professional, and student.

ABOUT THE AUTHORS

Scott Selikoff, OCA/OCP 8 and OCP 11, has been a professional Java Enterprise architect for over 20 years. He is founder of Selikoff Solutions, LLC, specializing in building custom mobile and server solutions for businesses in the tri-state New York City area.

Jeanne Boyarsky, OCA/OCP 8 and OCP 11, is a Java Champion and has worked as a Java developer for a major bank for more than 18 years. She is a senior moderator at CodeRanch, and trains and mentors students of all levels, including the programming division of a FIRST robotics team.

Introduction xv

Chapter 1 Working with Java Data Types 1

Chapter 2 Controlling Program Flow 13

Chapter 3 Java Object-Oriented Approach 27

Chapter 4 Exception Handling 125

Chapter 5 Working with Arrays and Collections 157

Chapter 6 Working with Streams and Lambda Expressions 187

Chapter 7 Java Platform Module System 243

Chapter 8 Concurrency 271

Chapter 9 Java I/O API 289

Chapter 10 Secure Coding in Java SE Application 309

Chapter 11 Database Applications with JDBC 329

Chapter 12 Localization 341

Chapter 13 Annotations 353

Chapter 14 Practice Exam 1 365

Chapter 15 Practice Exam 2 391

Chapter 16 Practice Exam 3 415

Appendix Answers and Explanations 441

Index 565

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The Used, Rental and eBook copies of this book are not guaranteed to include any supplemental materials. Typically, only the book itself is included. This is true even if the title states it includes any access cards, study guides, lab manuals, CDs, etc.