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<p>Introduction xix</p> <p>Assessment Test xxxviii</p> <p><b>Chapter 1 Advanced Class Design 1</b></p> <p>Reviewing OCA Concepts 2</p> <p>Using instanceof 7</p> <p>Understanding Virtual Method Invocation 9</p> <p>Annotating Overridden Methods 11</p> <p>Coding equals, hashCode, and toString 13</p> <p>Working with Enums 20</p> <p>Creating Nested Classes 24</p> <p>Summary 33</p> <p>Exam Essentials 34</p> <p>Review Questions 36</p> <p><b>Chapter 2 Design Patterns and Principles 47</b></p> <p>Designing an Interface 48</p> <p>Introducing Functional Programming 52</p> <p>Implementing Polymorphism 61</p> <p>Understanding Design Principles 66</p> <p>Working with Design Patterns 75</p> <p>Summary 93</p> <p>Exam Essentials 93</p> <p>Review Questions 95</p> <p><b>Chapter 3 Generics and Collections 103</b></p> <p>Reviewing OCA Collections 104</p> <p>Working with Generics 108</p> <p>Using Lists, Sets, Maps, and Queues 124</p> <p>Comparator vs. Comparable 143</p> <p>Searching and Sorting 150</p> <p>Additions in Java 8 152</p> <p>Summary 159</p> <p>Exam Essentials 161</p> <p>Review Questions 162</p> <p><b>Chapter 4 Functional Programming 171</b></p> <p>Using Variables in Lambdas 172</p> <p>Working with Built-In Functional Interfaces 173</p> <p>Returning an Optional 182</p> <p>Using Streams 185</p> <p>Working with Primitives 205</p> <p>Working with Advanced Stream Pipeline Concepts 213</p> <p>Summary 223</p> <p>Exam Essentials 224</p> <p>Review Questions 226</p> <p><b>Chapter 5 Dates, Strings, and Localization 233</b></p> <p>Working with Dates and Times 234</p> <p>Reviewing the String class 253</p> <p>Adding Internationalization and Localization 255</p> <p>Summary 273</p> <p>Exam Essentials 274</p> <p>Review Questions 276</p> <p><b>Chapter 6 Exceptions and Assertions 283</b></p> <p>Reviewing Exceptions 284</p> <p>Creating Custom Exceptions 289</p> <p>Using Multi-catch 291</p> <p>Using Try-With-Resources 296</p> <p>Rethrowing Exceptions 305</p> <p>Working with Assertions 308</p> <p>Summary 314</p> <p>Exam Essentials 315</p> <p>Review Questions 316</p> <p><b>Chapter 7 Concurrency 325</b></p> <p>Introducing Threads 327</p> <p>Creating Threads with the ExecutorService 335</p> <p>Synchronizing Data Access 350</p> <p>Using Concurrent Collections 358</p> <p>Working with Parallel Streams 366</p> <p>Managing Concurrent Processes 377</p> <p>Identifying Threading Problems 387</p> <p>Summary 392</p> <p>Exam Essentials 393</p> <p>Review Questions 394</p> <p><b>Chapter 8 IO 405</b></p> <p>Understanding Files and Directories 406</p> <p>Introducing Streams 411</p> <p>Working with Streams 420</p> <p>Interacting with Users 437</p> <p>Summary 442</p> <p>Exam Essentials 443</p> <p>Review Questions 445</p> <p><b>Chapter 9 NIO.2 453</b></p> <p>Introducing NIO.2 454</p> <p>Interacting with Paths and Files 460</p> <p>Understanding File Attributes 478</p> <p>Presenting the New Stream Methods 487</p> <p>Comparing Legacy File and NIO.2 Methods 494</p> <p>Summary 495</p> <p>Exam Essentials 495</p> <p>Review Questions 497</p> <p><b>Chapter 10 JDBC 505</b></p> <p>Introducing Relational Databases and SQL 507</p> <p>Introducing the Interfaces of JDBC 511</p> <p>Connecting to a Database 513</p> <p>Obtaining a Statement 518</p> <p>Executing a Statement 520</p> <p>Getting Data from a ResultSet 524</p> <p>Closing Database Resources 533</p> <p>Dealing with Exceptions 535</p> <p>Summary 536</p> <p>Exam Essentials 537</p> <p>Review Questions 539</p> <p><b>Appendix A Answers to Review Questions 547</b></p> <p>Chapter 1: Advanced Class Design 548</p> <p>Chapter 2: Design Patterns and Principles 550</p> <p>Chapter 3: Generics and Collections 553</p> <p>Chapter 4: Functional Programming 556</p> <p>Chapter 5: Dates, Strings, and Localization 558</p> <p>Chapter 6: Exceptions and Assertions 560</p> <p>Chapter 7: Concurrency 561</p> <p>Chapter 8: IO 565</p> <p>Chapter 9: NIO.2 568</p> <p>Chapter 10: JDBC 571</p> <p><b>Appendix B Study Tips 575</b></p> <p>Studying for the Test 576</p> <p>Taking the Test 582</p> <p><b>Appendix C Upgrading from Java 6 or Earlier 595</b></p> <p>Enhancing the Java Language 596</p> <p>Formatting and Parsing 603</p> <p>Applying Locks 607</p> <p>Understanding the Lock Framework 607</p> <p>Using a ReentrantLock 610</p> <p>Understanding Read/Write Locks 614</p> <p>Using a ReentrantReadWriteLock 615</p> <p>Working with Directories 617</p> <p>Summary 633</p> <p>Exam Essentials 633</p> <p>Review Questions 635</p> <p>Answers to Practice Test 645</p> <p>Index 649</p>

<p><b>Jeanne Boyarsky,</b> <b>OCA/OCP 8,</b> 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. <b>Scott Selikoff, OCA/OCP 8,</b> 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.

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