Core Java SE 9 for the Impatient

by Cay Horstmann

Overview

An Accessible Guide to the Java Language and Libraries

 

Modern Java introduces major enhancements that impact the core Java technologies and APIs at the heart of the Java platform. Many old Java idioms are no longer needed and new features such as modularization make you far more effective. However, navigating these changes can be challenging.

 

Core Java® SE 9 for the Impatient, Second Edition, is a complete yet concise guide that includes all the latest changes up to Java SE 9. Written by Cay S. Horstmann–author of the classic two-volume Core Java–this indispensable tutorial offers a faster, easier pathway for learning modern Java. Given Java SE 9’s size and the scope of its enhancements, there’s plenty to cover, but it’s presented in small chunks organized for quick access and easy understanding.

 

Horstmann’s practical insights and sample code help you quickly take advantage of all that’s new, from Java SE 9’s long-awaited “Project Jigsaw” module system to the improvements first introduced in Java SE 8, including lambda expressions and streams.

• Use modules to simplify the development of well-performing complex systems
• Migrate applications to work with the modularized Java API and third-party modules
• Test code as you create it with the new JShell Read-Eval-Print Loop (REPL)
• Use lambda expressions to express actions more concisely
• Streamline and optimize data management with today’s Streams API
• Leverage modern concurrent programming based on cooperating tasks
• Take advantage of a multitude of API improvements for working with collections, input/output, regular expressions, and processes
  

Whether you’re just getting started with modern Java or you’re an experienced developer, this guide will help you write tomorrow’s most robust, efficient, and secure Java code.

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Product Details

ISBN-13:	9780134694825
Publisher:	Pearson Education
Publication date:	09/15/2017
Sold by:	Barnes & Noble
Format:	eBook
Pages:	576
File size:	25 MB
Note:	This product may take a few minutes to download.
Age Range:	18 Years

About the Author

Cay S. Horstmann is the author of Java SE 8 for the Really Impatient (Addison-Wesley, 2014), Scala for the Impatient (Addison-Wesley, 2012), is principal author of Core Java(TM), Volumes I and II, Ninth Edition (Prentice Hall, 2013), and has written a dozen other books for professional programmers and computer science students. He is a professor of computer science at San Jose State University and is a Java Champion.

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