Focusing 100% on the objectives for new exam 1Z0-809, OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide is designed to make you fully prepared for thechallenging Exam 1Z0-809 as well as upgrade Exam 1Z0-810 and Exam 1Z0-813. Between Java 7 and Java 8, Oracle has made the biggest changes to the language in a long time. In particular, developers will need to learn functional programming for the first time to pass the certification. This comprehensive study guide covers all of the key topic areas Java programmers will need to be familiar with, including: Inheriting abstract classes and interfaces Exceptions Class design Object-Oriented design principles and design patterns Generics and collections Functional programming Advanced strings and localization Exceptions and assertions IO and NIO Threads Concurrency JDBC With this complete Study Guide, Java developers will gain the information, understanding, and practice they need to pass the OCP Java SE 8 Programmer II Exam 1Z0-809 as well as upgrade Exam 1Z0-810 and Exam 1Z0-813.Readers will also have access to Sybex's superior online interactive learning environment and test bank, including an assessment test, chapter tests, bonus practice exam questions, electronic flashcards, and a searchable Glossary of the most important terms readers will need to understand.