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The Classic Guide to the Java Programming Language--Fully Updated through Java 25
Whatever version of Java you are using, Core Java, Volume I: Fundamentals, Fourteenth Edition, will help you achieve a deep and practical understanding of the language and APIs. With hundreds of realistic examples, Java Champion Cay S. Horstmann demonstrates the most powerful and effective ways to get the job done.
Written for experienced programmers looking for in-depth coverage of the Java language and platform, this revised and updated edition continues to be the first choice for serious programmers. The carefully crafted sample programs demonstrate almost every language and library feature, as well as the newest capabilities introduced in Java 25. The examples are purposefully simple to focus on the major points, but for the most part, they aren't fake and they don't cut corners. They should make good starting points for your own code.
This first of two volumes offers a detailed treatment of fundamental Java programming topics, including object-oriented programming, reflection and proxies, interfaces and inner classes, exception handling, generics, collections, lambda expressions, concurrency, annotations, and the Java platform module system.
Master foundational techniques, idioms, and best practices for
writing superior Java code
Leverage the power of interfaces, lambda expressions, and inner classes
Take advantage of sealed class hierarchies and pattern matching for processing structured data
Harden programs through effective exception handling and debugging
Write safer, more reusable code with generic programming
Improve performance and efficiency with Java's standard collections
Explore simple programs with compact compilation units, instance main methods, and module imports
Assemble complex programs with archives and modules
Effectively utilize Java's powerful concurrency model, using platform and virtual thread
This is the definitive reference and instructional work for Java and the Java ecosystem."
--Andrew Binstock, Java Magazine
See Core Java, Volume II: Advanced Features, Fourteenth Edition, for coverage of Java 25 enterprise features, including detailed discussions of networking, security, internationalization, and advanced UI programming.
Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.
Contents
Preface xiii
Acknowledgments xix
Chapter 1: An Introduction to Java 1
1.1 Java as a Programming Platform 1
1.2 The Java "White Paper" Buzzwords 2
1.3 Java Applets and the Internet 7
1.4 A Short History of Java 9
1.5 Common Misconceptions about Java 12
Chapter 2: The Java Programming Environment 15
2.1 Installing the Java Development Kit 15
2.2 Using the Command-Line Tools 19
2.3 Using an Integrated Development Environment 23
2.4 JShell 26
Chapter 3: Fundamental Programming Structures in Java 31
3.1 A Simple Java Program 31
3.2 Comments 34
3.3 Data Types 35
3.4 Variables and Constants 42
3.5 Operators 46
3.6 Strings 58
3.7 Input and Output 73
3.8 Control Flow 80
3.9 Big Numbers 98
3.10 Arrays 101
Chapter 4: Objects and Classes 117
4.1 Introduction to Object-Oriented Programming 117
4.2 Using Predefined Classes 122
4.3 Defining Your Own Classes 131
4.4 Static Fields and Methods 143
4.5 Method Parameters 151
4.6 Object Construction 157
4.7 Records 168
4.8 Packages 173
4.9 JAR Files 186
4.10 Documentation Comments 193
4.11 Class Design Hints 201
Chapter 5: Inheritance 205
5.1 Classes, Superclasses, and Subclasses 205
5.2 Object: The Cosmic Superclass 226
5.3 Generic Array Lists 243
5.4 Object Wrappers and Autoboxing 251
5.5 Methods with a Variable Number of Arguments 255
5.6 Abstract Classes 257
5.7 Enumeration Classes 262
5.8 Sealed Classes 266
5.9 Pattern Matching 272
5.10 Reflection 279
5.11 Design Hints for Inheritance 305
Chapter 6: Interfaces, Lambda Expressions, and Inner Classes 309
6.1 Interfaces 310
6.2 Lambda Expressions 334
6.3 Inner Classes 354
6.4 Service Loaders 372
6.5 Proxies 374
Chapter 7: Exceptions, Assertions, and Logging 381
7.1 Dealing with Errors 382
7.2 Catching Exceptions 389
7.3 Tips for Using Exceptions 403
7.4 Using Assertions 407
7.5 Logging 412
7.6 Debugging Tips 427
Chapter 8: Generic Programming 433
8.1 Type Parameters 433
8.2 Generic Code and the Virtual Machine 442
8.3 Inheritance Rules for Generic Types 448
8.4 Wildcard Types 450
8.5 Restrictions and Limitations 458
8.6 Reflection and Generics 471
Chapter 9: Collections 481
9.1 The Java Collections Framework 481
9.2 Interfaces in the Collections Framework 491
9.3 Concrete Collections 494
9.4 Maps 517
9.5 Copies and Views 530
9.6 Algorithms 541
9.7 Legacy Collections 553
Chapter 10: Concurrency 565
10.1 Running Threads 565
10.2 Thread States 571
10.3 Thread Properties 574
10.4 Coordinating Tasks 583
10.5 Synchronization 601
10.6 Thread-Safe Collections 631
10.7 Asynchronous Computations 648
10.8 Processes 663
Chapter 11: Annotations 673
11.1 Using Annotations 673
11.2 Defining Annotations 679
11.3 Annotations in the Java API 682
11.4 Processing Annotations at Runtime 686
11.5 Source-Level Annotation Processing 690
11.6 Bytecode Engineering 696
Chapter 12: The Java Platform Module System 705
12.1 The Module Concept 705
12.2 Naming Modules 707
12.3 The Modular "Hello, World!" Program 707
12.4 Requiring Modules 709
12.5 Exporting Packages 711
12.6 Modular JARs 715
12.7 Modules and Reflective Access 716
12.8 Automatic Modules 719
12.9 The Unnamed Module 721
12.10 Command-Line Flags for Migration 722
12.11 Transitive and Static Requirements 723
12.12 Importing Modules 725
12.13 Qualified Exporting and Opening 726
12.14 Service Loading 726
12.15 Tools for Working with Modules 729
Appendix 733
Index 739
