book

Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809: A Comprehensive OCPJP 8 Certification Guide

Name: Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809: A Comprehensive OCPJP 8 Certification Guide
ISBN: 9781484218365

by S G Ganesh, Hari Kiran, Tushar Sharma

January 2016

Intermediate to advanced

508 pages

12h 33m

English

Apress

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Cover
Title
Copyright
Dedication
Contents at a Glance
Contents
About the Authors
About the Technical Reviewer
Acknowledgments
Introduction

Chapter 1: The OCPJP 8 Exam: FAQ
OverviewFAQ 1. Can you provide details of the Java associate and professional exams for Java 8?FAQ 2. Can you compare the specifications of the exams targeting OCAJP 8 and OCPJP 8 certifications?Details About the ExamFAQ 3. OCAJP 8 certification is a prerequisite for OCPJP 8 certification. Does that mean that I have to take the OCAJP8 exam before I can take the OCPJP8 exam?FAQ 4. How does the OCPJP 8 exam differ from the older OCPJP 7 exam?FAQ 5.Should I take the OCPJP8 exam or earlier versions such as the OCPJP 7 exam?FAQ 6. What kinds of questions are asked in the OCPJP 8exam?FAQ 7. What does the OCPJP 8 exam test for?FAQ 8. I’ve been a Java programmer for the last five years. Do I have to prepare for the OCPJP 8 exam?FAQ 9. How do I prepare for the OCPJP 8 exam?FAQ 10. How do I know when I’m ready to take the OCPJP 8 exam?Taking the ExamFAQ 11. What are my options to register for the exam?FAQ 12. How do I register for the exam, schedule a day and time for taking the exam, and appear for the exam?FAQ 13. What are the key things I need to remember before taking the exam and on the day of exam?
Chapter 2: Java Class Design
EncapsulationInheritancePolymorphismRuntime PolymorphismMethod OverloadingConstructor OverloadingOverload ResolutionPoints to RememberOverriding Methods in Object ClassOverriding toString() MethodOverriding equals() MethodObject CompositionComposition vs. InheritanceSingleton and Immutable ClassesCreating Singleton ClassImmutable ClassesUsing the “static” KeywordStatic BlockPoints to RememberSummary
Chapter 3: Advanced Class Design
Abstract ClassesPoints to RememberUsing the “final” KeywordFinal ClassesFinal Methods and VariablesPoints to RememberFlavors of Nested ClassesStatic Nested Classes (or Interfaces)Inner ClassesLocal Inner ClassesAnonymous Inner ClassesEnum Data TypePoints to RememberInterfacesDeclaring and Implementing InterfacesAbstract Classes vs. InterfacesLambda FunctionsLambda Functions: SyntaxSummary
Chapter 4: Generics and Collections
Creating and Using Generic ClassesDiamond SyntaxInteroperability of Raw Types and Generic TypesGeneric MethodsGenerics and SubtypingWildcard ParametersPoints to RememberCreate and Use Collection ClassesAbstract Classes and InterfacesConcrete ClassesThe Map InterfaceThe Deque Interface and ArrayDeque classComparable and Comparator InterfacesCollection Streams and FiltersIterate Using forEachMethod References with StreamsUnderstanding the Stream InterfaceThe Stream PipelineStream SourcesFiltering a CollectionTerminal OperationsSummary
Chapter 5: Lambda Built-in Functional Interfaces
Using Built-in Functional InterfacesThe Predicate InterfaceThe Consumer InterfaceThe Function InterfaceThe Supplier InterfacePrimitive Versions of Functional InterfacesBinary Versions of Functional InterfacesThe UnaryOperator InterfaceSummary
Chapter 6: Java Stream API
Extract Data from a StreamSearch Data from a StreamThe Optional classCreating Optional ObjectsOptional StreamPrimitive Versions of Optional<T>Stream Data Methods and Calculation MethodsSort a Collection Using Stream APISave Results to a CollectionUsing flatMap Method in StreamSummary
Chapter 7: Exceptions and Assertions
Throwable and its SubclassesThrowing ExceptionsUnhandled ExceptionsThe Throws ClausePoints to RememberTry-with-ResourcesClosing Multiple ResourcesPoints to RememberCustom ExceptionsAssertionsAssert StatementSummary
Chapter 8: Using the Java SE 8 Date/Time API
Understanding Important Classes in java.timeUsing the LocalDate classUsing the LocalTime ClassUsing the LocalDateTime ClassUsing the Instant ClassUsing the Period ClassUsing the Duration ClassUsing the TemporalUnit InterfaceDealing with Time Zones and Daylight SavingsUsing Time Zone–Related ClassesDealing with Daylight SavingsFormatting Dates and TimesFlight Travel ExampleSummary
Chapter 9: Java I/O Fundamentals
Reading from and Writing to ConsoleUnderstanding Standard StreamsUnderstanding the Console ClassFormatted Output with the Console ClassPoints to RememberGetting Input with the Console ClassUsing Streams to Read and Write FilesCharacter Streams and Byte StreamsCharacter StreamsByte StreamsPoints to RememberSummary
Chapter 10: Java File I/O (NIO.2)
Using the Path InterfaceGetting Path InformationComparing Two PathsUsing the Files ClassChecking File Properties and MetadataCopying a FileMoving a FileDeleting a FileUsing the Stream API with NIO.2Summary
Chapter 11: Java Concurrency
Creating Threads to Execute Tasks ConcurrentlyCreating ThreadsThread Synchronization With synchronized KeywordThreading ProblemsDeadlocksLivelocksLock StarvationUsing java.util.concurrent.atomic PackageUse java.util.concurrent CollectionsCyclicBarrierConcurrent CollectionsUsing Callable and ExecutorService InterfacesExecutorCallable and ExecutorServiceUse Parallel Fork/Join FrameworkUseful Classes in the Fork/Join FrameworkUsing the Fork/Join FrameworkPoints to RememberUse Parallel StreamsPerforming Correct ReductionsParallel Streams and PerformanceSummary
Chapter 12: Building Database Applications with JDBC
Introduction to JDBCSetting Up the DatabaseConnecting to a DatabaseThe Connection InterfaceConnecting to the Database Using DriverManagerQuerying and Updating the DatabaseStatement InterfaceResultSet InterfaceQuerying the DatabaseUpdating the DatabasePoints to RememberSummary
Chapter 13: Localization
LocalesThe Locale ClassResource BundlesUsing PropertyResourceBundleUsing ListResourceBundleLoading a Resource BundleNaming Convention for Resource BundlesSummary
Chapter 14: Mock Exam
Index

Overview

This book offers a comprehensive guide for the Oracle Certified Professional Java SE 8 Programmer Exam. It starts by answering frequently asked exam questions followed by full coverage of exam topics with numerous programming and real-world examples.

Each chapter ends with practice exam questions and a quick summary that reviews key concepts covered in the chapter from the OCPJP exam perspective. The book ends with a full-length, mock exam to ensure you have enough practice before actually taking the exam.

If you are an OCPJP 8 exam aspirant, this book is certainly for you. The book assumes you’re already familiar with Java fundamentals, which is in keeping with the prerequisite for having a OCAJP 8 certification.

You’ll enjoy reading Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809 because of its clear, simple language; example driven approach; easy-to-read style; and complete focus on the exam requirements.

A few of the key features of the book include:

In-depth and 100% coverage of all 12 exam topics for the certification

Numerous illustrative programming and real-world examples

Hundreds of practice exam questions (including a full-length mock exam)

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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