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Informationen zum Autor Jeanne Boyarsky, OCA/OCP 8, has worked as a Java developer for a bank in NYC for 13 years where she develops, mentors and conducts training. In her free time, she is a senior moderator at CodeRanch and works on the forum code base. Scott Selikoff, OCA/OCP 8, has been a professional Java Enterprise developer for over 15 years. He currently operates Selikoff Solutions, LLC, which provides software consulting services to businesses in the tri-state New York City area. Klappentext Complete, trusted preparation for the Java Programmer II examOCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide is your comprehensive companion for preparing for Exam 1Z0-809 as well as upgrade Exam 1Z0-810 and Exam 1Z0-813. With full coverage of 100% of exam objectives, this invaluable guide reinforces what you know, teaches you what you don't know, and gives you the hands-on practice you need to boost your skills. Written by expert Java developers, this book goes beyond mere exam prep with the insight, explanations and perspectives that come from years of experience. You'll review the basics of object-oriented programming, understand functional programming, apply your knowledge to database work, and much more. From the basic to the advanced, this guide walks you through everything you need to know to confidently take the OCP 1Z0-809 Exam and upgrade exams 1Z0-810 and 1Z0-813.Java 8 represents the biggest changes to the language to date, and the latest exam now requires that you demonstrate functional programming competence in order to pass. This guide has you covered, with clear explanations and expert advice.* Understand abstract classes, interfaces, and class design* Learn object-oriented design principles and patterns* Delve into functional programming, advanced strings, and localization* Master IO, NIO, and JDBC with expert-led database practiceIf you're ready to take the next step in your IT career, OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide is your ideal companion on the road to certification. Zusammenfassung Complete, trusted preparation for the Java Programmer II exam OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide is your comprehensive companion for preparing for Exam 1Z0-809 as well as upgrade Exam 1Z0-810 and Exam 1Z0-813. Inhaltsverzeichnis Introduction xix Assessment Test xxxviii Chapter 1 Advanced Class Design 1 Reviewing OCA Concepts 2 Using instanceof 7 Understanding Virtual Method Invocation 9 Annotating Overridden Methods 11 Coding equals, hashCode, and toString 13 Working with Enums 20 Creating Nested Classes 24 Summary 33 Exam Essentials 34 Review Questions 36 Chapter 2 Design Patterns and Principles 47 Designing an Interface 48 Introducing Functional Programming 52 Implementing Polymorphism 61 Understanding Design Principles 66 Working with Design Patterns 75 Summary 93 Exam Essentials 93 Review Questions 95 Chapter 3 Generics and Collections 103 Reviewing OCA Collections 104 Working with Generics 108 Using Lists, Sets, Maps, and Queues 124 Comparator vs. Comparable 143 Searching and Sorting 150 Additions in Java 8 152 Summary 159 Exam Essentials 161 Review Questions 162 Chapter 4 Functional Programming 171 Using Variables in Lambdas 172 Working with Built-In Functional Interfaces 173 Returning an Optional 182 Using Streams 185 Working with Primitives 205 Working with Advanced Stream Pipeline Concepts 213 Summary 223 Exam Essentials 224 Review Questions 226 Chapter 5 Dates, Strings, and Localization 233 Working with Dates and Time...
