Jeanne Boyarsky & Scott Selikoff 
OCP Oracle Certified Professional Java SE 17 Developer Practice Tests [PDF ebook] 
Exam 1Z0-829

Introduction xvii
Chapter 1 Handling Date, Time, Text, Numeric and Boolean Values 1
Chapter 2 Controlling Program Flow 25
Chapter 3 Utilizing Java Object- Oriented Approach 45
Chapter 4 Handling Exceptions 149
Chapter 5 Working with Arrays and Collections 181
Chapter 6 Working with Streams and Lambda Expressions 211
Chapter 7 Packaging and Deploying Java Code and Use the Java Platform Module System 267
Chapter 8 Managing Concurrent Code Execution 295
Chapter 9 Using Java I/O API 319
Chapter 10 Accessing Databases Using JDBC 339
Chapter 11 Implementing Localization 353
Chapter 12 Practice Exam 1 365
Chapter 13 Practice Exam 2 391
Chapter 14 Practice Exam 3 417
Appendix Answers to Review Questions 443
Chapter 1: Handling Date, Time, Text, Numeric and Boolean Values 444
Chapter 2: Controlling Program Flow 450
Chapter 3: Utilizing Java Object- Oriented Approach 455
Chapter 4: Handling Exceptions 482
Chapter 5: Working with Arrays and Collections 489
Chapter 6: Working with Streams and Lambda Expressions 498
Chapter 7: Packaging and Deploying Java Code and Use the Java Platform Module System 516
Chapter 8: Managing Concurrent Code Execution 524
Chapter 9: Using Java I/O API 530
Chapter 10: Accessing Databases Using JDBC 535
Chapter 11: Implementing Localization 538
Chapter 12: Practice Exam 1 541
Chapter 13: Practice Exam 2 548
Chapter 14: Practice Exam 3 554
Index 561

ABOUT THE AUTHORS
Jeanne Boyarsky is a Java Champion and has worked as a Java developer for a major bank for more than 20 years. She is a senior moderator at Code Ranch, and trains and mentors students of all levels, including the programming department of a FIRST robotics team.
Scott Selikoff has been a professional Java Enterprise architect for over 20 years. He currently works as a Staff Software Engineer at Google, specializing in Architecture and Cloud Services. He is a Leader of the Garden State Java User Group, helping to facilitate discussions and exchange of ideas within the community.