OCP: Oracle Certified Professional Java Se 8 Programmer II Study Guide: Exam 1Z0-809

✍ Scribed by Boyarsky, Jeanne;Selikoff, Scott

• Publisher: Sybex
• Year: 2015;2016
• Tongue: English
• Category: Library

✦ Synopsis

Complete, trusted preparation for the Java Programmer II examOCP: Oracle Certified Professional Java SE 8 Programmer II Study Guideis 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 practice If you're ready to take the next step in your IT career,OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guideis your ideal companion on the road to certification.

✦ Table of Contents

OCP Oracle® Certified Professional Java® SE 8 Programmer II: Study Guide
Acknowledgments
About the Authors
Contents at a Glance
Contents
Introduction
Assessment Test
Answers to Assessment Test
Chapter 1 Advanced Class Design
Reviewing OCA Concepts
Access Modifiers
Overloading and Overriding
Abstract Classes
Static and Final
Imports
Using instanceof
Understanding Virtual Method Invocation
Annotating Overridden Methods
Coding equals, hashCode, and toString
toString
equals
hashCode
Working with Enums
Using Enums in Switch Statements. Adding Constructors, Fields, and MethodsCreating Nested Classes
Member Inner Classes
Local Inner Classes
Anonymous Inner Classes
Static Nested Classes
Summary
Exam Essentials
Review Questions
Chapter 2 Design Patterns and Principles
Designing an Interface
Purpose of an Interface
Introducing Functional Programming
Defining a Functional Interface
Implementing Functional Interfaces with Lambdas
Applying the Predicate Interface
Implementing Polymorphism
Distinguishing between an Object and a Reference
Casting Object References
Understanding Design Principles
Encapsulating Data. Creating JavaBeansApplying the Is-a Relationship
Applying the Has-a Relationship
Composing Objects
Working with Design Patterns
Applying the Singleton Pattern
Creating Immutable Objects
Using the Builder Pattern
Creating Objects with the Factory Pattern
Summary
Exam Essentials
Review Questions
Chapter 3 Generics and Collections
Reviewing OCA Collections
Array and ArrayList
Searching and Sorting
Wrapper Classes and Autoboxing
The Diamond Operator
Working with Generics
Generic Classes
Generic Interfaces
Generic Methods
Interacting with Legacy Code
Bounds. Putting It All TogetherUsing Lists, Sets, Maps, and Queues
Common Collections Methods
Using the List Interface
Using the Set Interface
Using the Queue Interface
Map
Comparing Collection Types
Comparator vs. Comparable
Comparable
Comparator
Searching and Sorting
Additions in Java 8
Using Method References
Removing Conditionally
Updating All Elements
Looping through a Collection
Using New Java 8 Map APIs
Summary
Exam Essentials
Review Questions
Chapter 4 Functional Programming
Using Variables in Lambdas
Working with Built-In Functional Interfaces
Implementing Supplier. Implementing Consumer and BiConsumerImplementing Predicate and BiPredicate
Implementing Function and BiFunction
Implementing UnaryOperator and BinaryOperator
Checking Functional Interfaces
Returning an Optional
Using Streams
Creating Stream Sources
Using Common Terminal Operations
Using Common Intermediate Operations
Putting Together the Pipeline
Printing a Stream
Working with Primitives
Creating Primitive Streams
Using Optional with Primitive Streams
Summarizing Statistics
Learning the Functional Interfaces for Primitives
Working with Advanced Stream Pipeline Concepts.

✦ Subjects

Computer Science;Programming;Technical;Software;Science;Technology