Readers familiar with Horstmann's  original, two-volume “Core Java” books who are looking for a comprehensive, but condensed guide to all of the new features and functions of Java SE 9 will learn how these new features impact the language and core libraries. Instead of the meticulous detail that the much larger two-volume set provides, this condensed treatment focuses on practical examples and is presented in bite-sized chunks.   As with Java 8, Modern Java idioms are no longer required and there is a much faster, easier pathway for learning Java. Horstmann quickly cuts to the chase without lecturing about the superiority of one paradigm over another or rehashing Java history. Given the size of the Java language and the scope of the new features introduced in Java 9, there is a great deal of new material to cover, but it is presented in small chunks organized so that you can quickly retrieve it when needed.   This book covers all aspects of Java that a modern developer needs to know, including modularity, as well as the powerful lambda expressions that were introduced in Java 8. It will also tell you how to find out more about old-fashioned concepts that you might still see in legacy code, but won't dwell on them.

Table of Contents:
Preface xxi Acknowledgments xxiii About the Author xxv   Chapter 1: Fundamental Programming Structures 1 1.1 Our First Program 2 1.2 Primitive Types 10 1.3 Variables 14 1.4 Arithmetic Operations 17 1.5 Strings 24 1.6 Input and Output 32 1.7 Control Flow 36 1.8 Arrays and Array Lists 43 1.9 Functional Decomposition 52 Exercises 54   Chapter 2: Object-Oriented Programming 59 2.1 Working with Objects 60 2.2 Implementing Classes 65 2.3 Object Construction 69 2.4 Static Variables and Methods 74 2.5 Packages 78 2.6 Nested Classes 85 2.7 Documentation Comments 90 Exercises 95   Chapter 3: Interfaces and Lambda Expressions 99 3.1 Interfaces 100 3.2 Static, Default, and Private Methods 105 3.3 Examples of Interfaces 109 3.4 Lambda Expressions 113 3.5 Method and Constructor References 116 3.6 Processing Lambda Expressions 119 3.7 Lambda Expressions and Variable Scope 124 3.8 Higher-Order Functions 127 3.9 Local and Anonymous Classes 129 Exercises 131   Chapter 4: Inheritance and Reflection 135 4.1 Extending a Class 136 4.2 Object: The Cosmic Superclass 145 4.3 Enumerations 154 4.4 Runtime Type Information and Resources 159 4.5 Reflection 168 Exercises 177   Chapter 5: Exceptions, Assertions, and Logging 181 5.1 Exception Handling 182 5.2 Assertions 193 5.3 Logging 195 Exercises 203   Chapter 6: Generic Programming 207 6.1 Generic Classes 208 6.2 Generic Methods 209 6.3 Type Bounds 210 6.4 Type Variance and Wildcards 211 6.5 Generics in the Java Virtual Machine 216 6.6 Restrictions on Generics 220 6.7 Reflection and Generics 226 Exercises 229   Chapter 7: Collections 235 7.1 An Overview of the Collections Framework 236 7.2 Iterators 240 7.3 Sets 242 7.4 Maps 243 7.5 Other Collections 247 7.6 Views 252 Exercises 255   Chapter 8: Streams 259 8.1 From Iterating to Stream Operations 260 8.2 Stream Creation 261 8.3 The filter, map, and flatMap Methods 263 8.4 Extracting Substreams and Combining Streams 264 8.5 Other Stream Transformations 265 8.6 Simple Reductions 266 8.7 The Optional Type 267 8.8 Collecting Results 271 8.9 Collecting into Maps 273 8.10 Grouping and Partitioning 274 8.11 Downstream Collectors 275 8.12 Reduction Operations 277 8.13 Primitive Type Streams 279 8.14 Parallel Streams 280 Exercises 283   Chapter 9: Processing Input and Output 287 9.1 Input/Output Streams, Readers, and Writers 288 9.2 Paths, Files, and Directories 298 9.3 HTTP Connections 306 9.4 Regular Expressions 310 9.5 Serialization 319 Exercises 325   Chapter 10: Concurrent Programming 329 10.1 Concurrent Tasks 330 10.2 Asynchronous Computations 335 10.3 Thread Safety 341 10.4 Parallel Algorithms 348 10.5 Threadsafe Data Structures 350 10.6 Atomic Counters and Accumulators 354 10.7 Locks and Conditions 357 10.8 Threads 362 10.9 Processes 366 Exercises 371   Chapter 11: Annotations 377 11.1 Using Annotations 378 11.2 Defining Annotations 383 11.3 Standard Annotations 386 11.4 Processing Annotations at Runtime 391 11.5 Source-Level Annotation Processing 394 Exercises 398   Chapter 12: The Date and Time API 401 12.1 The Time Line 402 12.2 Local Dates 404 12.3 Date Adjusters 407 12.4 Local Time 409 12.5 Zoned Time 410 12.6 Formatting and Parsing 413 12.7 Interoperating with Legacy Code 416 Exercises 417   Chapter 13: Internationalization 421 13.1 Locales 422 13.2 Number Formats 427 13.3 Currencies 428 13.4 Date and Time Formatting 429 13.5 Collation and Normalization 431 13.6 Message Formatting 433 13.7 Resource Bundles 435 13.8 Character Encodings 438 13.9 Preferences 439 Exercises 441   Chapter 14: Compiling and Scripting 443 14.1 The Compiler API 444 14.2 The Scripting API 448 14.3 The Nashorn Scripting Engine 452 14.4 Shell Scripting with Nashorn 461 Exercises 464   Chapter 15: The Java Platform Module System 469 15.1 The Module Concept 470 15.2 Naming Modules 472 15.3 The Modular “Hello, World!” Program 472 15.4 Requiring Modules 474 15.5 Exporting Packages 476 15.6 Modules and Reflective Access 479 15.7 Modular JARs 482 15.8 Automatic Modules and the Unnamed Module 484 15.9 Command-Line Flags for Migration 485 15.10 Transitive and Static Requirements 487 15.11 Qualified Exporting and Opening 489 15.12 Service Loading 490 15.13 Tools for Working with Modules 491 Exercises 494   Index 497