JAVA2核心编程（第1卷 基础篇）

Preface, xvii

To the Reader, xvii

About This Book, xviii

Conventions, xx

Sample Code, xx

Acknowledgments, xxi

Chapter 1

An Introduction to Java, 1

Java as a Programming Tool, 2

Advantages of Java, 2

The Java "White Paper" Buzzwords, 3

Simple, 4

Object Oriented, 4

Distributed, 5

Robust, 5

Secure, 5

Architecture Neutral, 6

Portable, 7

Interpreted, 7

High Performance, 7

Multithreaded, 8

Dynamic, 8

Java and the Internet, 8

A Short History of Java, 9

Common Misconceptions About Java, 11

Chapter 2

The Java Programming Environment, 15

Installing the Java Software Development Kit, 15

Setting the Execution Path, 16

Installing the Library Source and Documentation, 17

Installing the Core Java Program Examples, 17

Navigating the Java Directories, 17

Development Environments, 18

Using the Command Line Tools, 19

Troubleshooting Hints, 20

Using an Integrated Development Environment, 21

Locating Compilation Errors, 22

Compiling and Running Programs from a Text Editor, 24

Graphical Applications, 27

Applets, 29

Chapter 3

Fundamental Programming Structures in Java, 35

A Simple Java Program, 35

Comments, 38

Data Types, 39

Integers, 39

Floating-Point Types, 40

The Character Type, 41

The boolean Type, 42

Variables, 42

Assignments and Initializations, 43

Constants, 43

Operators, 44

Increment and Decrement Operators, 45

Relational and boolean Operators, 45

Bitwise Operators, 46

Mathematical Functions and Constants, 47

Conversions Between Numeric Types, 47

Casts, 48

Parentheses and Operator Hierarchy, 49

Strings, 49

Concatenation, 50

Substrings, 50

String Editing, 50

Testing Strings for Equality, 52

Reading the On-line API Documentation, 53

Reading Input, 56

Formatting Output, 57

Control Flow, 60

Block Scope, 60

Conditional Statements, 61

Indeterminate Loops, 64

Determinate Loops, 68

Multiple Selections--the switch Statement, 70

Breaking Control Flow, 71

Big Numbers, 74

Arrays, 76

Array Initializers and Anonymous Arrays, 77

Copying Arrays, 77

Command Line Parameters, 79

Sorting an Array, 79

Multidimensional Arrays, 82

Ragged Arrays, 85

Chapter 4

Objects and Classes, 89

Introduction to Object-Oriented Programming, 89

The Vocabulary of OOP, 91

Objects, 91

Relationships Between Classes, 92

Contrasting OOP with Traditional Procedural Programming Techniques, 94

Using Existing Classes, 96

Objects and Object Variables, 96

The GregorianCalendar Class of the ]ava Library, 98

Building Your Own Classes, 104

An Employee Class, 104

Using Multiple Source Files, 107

Analyzing the Employee Class, 108

First Steps with Constructors, 108

The Methods of the Employee Class, 110

Method Access to Private Data, 113

Private Methods, 113

Final Instance Fields, 113

Static Fields and Methods, 114

Static Fields, 114

Constants, 114

Static Methods, 115

Factory Methods, 116

The main Method, 116

Method Parameters, 118

Object Construction, 124

Overloading, 124

Default Field Initialization, 124

Default Constructors, 125

Explicit Field Initialization, 125

Parameter Names, 126

Calling Another Constructor, 127

Initialization Blocks, 127

Object Destruction and the finalize Method, 131

Packages, 131

Using Packages, 132

Documentation Comments, 139

How to Insert Comments, 139

Class Comments, 139

Method Comments, 140

Field Comments, 140

General Comments, 141

Package and Overview Comments, 142

How to Extract Comments, 142

Class Design Hints, 142

Chapter 5

Inheritance, 145

Extending Classes, 145

Inheritance Hierarchies, 152

Polymorphism, 152

Dynamic Binding, 153

Preventing Inheritance: Final Classes and Methods, 155

Casting, 156

Abstract Classes, 158

Protected Access, 162

Obi ect: The Cosmic Superclass, 163

The equals and tostring methods, 163

Generic Programming, 169

Array Lists, 171

Object Wrappers, 177

The Class Class, 180

Reflection, 183

Using Reflection to Analyze the Capabilities of Classes, 184

Using Reflection to Analyze Objects at Run Time, 188

Using Reflection to Write Generic Array Code, 192

Method Pointers.t, 195

Design Hints for Inheritance, 199

Chapter 6

Interfaces and Inner Classes, 201

Interfaces, 201

Properties of Interfaces, 205

Interfaces and Abstract Classes, 206

Interfaces and Callbacks, 207

Object Cloning, 210

Inner Classes, 215

Using an Inner Class to Access Object State, 216

Special Syntax Rules for Inner Classes, 219

Are Inner Classes Useful? Are They Actually Necessary?

Are They Secure?, 220

Local Inner Classes, 222

Static Inner Classes, 227

Proxies, 230

Properties of Proxy Classes, 233

Chapter 7

Graphics Programming, 235

Introduction to Swing, 235

Creating a Frame, 238

Frame Positioning, 241

Displaying Information in a Panel, 246

2D Shapes, 251

Colors, 258

Filling Shapes, 259

Text and Fonts, 262

Images, 270

Chapter 8

Event Handling 277

Basics of Event Handling, 278

Example: Handling a button click, 280

Becoming Comfortable with Inner Classes, 285

Turning Components into Event Listeners, 287

Example: Changing the Look and Feel, 289

Example: Capturing Window Events, 291

The AWT Event Hierarchy, 295

Semantic and Low-Level Events in the AWT, 297

Event Handling Summary, 297

Low-Level Event Types, 300

Keyboard Events, 300

Mouse Events, 305

Focus Events, 313

Actions, 316

Multicasting, 324

The Event Queue, 326

Adding Custom Events, 327

Chapter 9

User Interface Components with Swing, 335

The Model-View-Controller Design Pattern, 336

A Model-View-Controller Analysis of Swing Buttons, 340

An Introduction to Layout Management, 341

Border Layout, 343

Panels, 344

Grid Layout, 346

Text Input, 350

Text Fields, 350

Password Fields, 356

Formatted Input Fields, 356

Text Areas, 371

Labels and Labeling Components, 374

Selecting and Editing Text, 376

Making Choices, 378

Check Boxes, 378

Radio Buttons, 381

Borders, 385

Combo Boxes, 389

Sliders, 392

The JSpinner Component, 398

Menus, 406

Building Menus, 406

Icons in Menu Items, 408

Check Box and Radio Button Menu Items, 410

Pop-up Menus, 411

Keyboard Mnemonics and Accelerators, 412

Enabling and Disabling Menu Items, 415

Tool Bars, 419

Tool Tips, 421

Sophisticated Layout Management, 424

Box Layout, 426

The Grid Bag Layout, 430

The Spring Layout, 436

Using No Layout Manager, 446

Custom Layout Managers, 446

Traversal Order, 450

Dialog Boxes, 452

Option Dialogs, 452

Creating Dialogs, 462

Data Exchange, 466

File Dialogs, 473

Color Choosers, 483

Chapter 10

Deploying Applets and Applications, 491

Applet Basics, 491

A Simple Applet, 494

Viewing an Applet, 494

Converting Applications to Applets, 496

Life Cycle of an Applet, 498

Security Basics, 499

Pop-Up Windows in Applets, 500

The Applet HTML Tags and Attributes, 502

Applet Attributes for Positioning, 502

Applet Attributes for Code, 504

Applet Attributes for Java-Challenged Viewers, 505

The obi ect Tag, 506

Passing Information to Applets, 506

Multimedia, 511

URLs, 511

Obtaining Multimedia Files, 512

The Applet Context, 513

lnter-Applet Communication, 514

Displaying Items in the Browser, 514

A Boobnark Applet, 516

It's an Applet. It's an Application. It's Both!, 518

JAR Files, 523

JAR Caching, 524

Packaging Applications, 525

The Manifest, 525

Self-Running JAR files, 526

Resources, 527

Optional Packages, 530

Sealing, 531

Java Web Start, 532

The JNLP API, 534

Storing Application Preferences, 544

Property Sets, 545

The Preferences API, 551

Chapter 11

Exceptions and Debugging, 557

Dealing with Errors, 558

The Classification of Exceptions, 559

Advertising the Exceptions That a Method Throws, 560

How to Throw an Exception, 562

Creating Exception Classes, 563

Catching Exceptions, 564

Catching Multiple Exceptions, 566

Rethrowing Exceptions, 566

Chained Exceptions, 569

Stack Frames, 570

A Final Look at Java Error and Exception Handling, 572

Some Tips on Using Exceptions, 576

Logging, 578

Basic Logging, 579

Advanced Logging, 579

Changing the Log Manager Configuration, 581

Localization, 582

Handlers, 582

Filters, 585

Formatters, 586

Assertions, 593

Enabling and Disabling Assertions, 594

Usage Hints for Assertions, 595

Debugging Techniques, 597

Useful Tricks for Debugging, 597

Using a Console Window, 600

Tracing A WT Events, 602

The AWT Robot, 605

Profiling, 609

Coverage Testing, 612

Using a Debugger, 613

The ]DB Debugger, 614

The Sun ONE Studio Debugger, 619

Chapter 12

Streams and Files, 621

Streams, 621

Reading and Writing Bytes, 622

The Complete Stream Zoo, 624

Layering Stream Filters, 626

Data Streams, 629

Random-Access File Streams, 632

ZIP File Streams, 641

Putting Streams to Use, 649

Writing Delimited Output, 649

String Tokenizers and Delimited Text, 650

Reading Delimited Input, 651

Random-Access Streams, 654

Object Streams, 661

Storing Objects of Variable Type, 661

Object Serialization File Format, 665

The Problem of Saving Object References, 668

Output Format for Object References, 675

Modifying the Default Serialization Mechanism, 677

Serializing Typesafe Enumerations, 679

Versioning, 680

Using Serialization for Cloning, 682

File Management, 684

New I/O, 689

Memory-Mapped Files, 690

File Locking, 694

Regular Expressions, 698

Appendix, 707

Index, 709