Core Java® Volume II—Advanced Features - Pearsoncmg

149 Pages·2013·8.47 MB·English

Core Java
®
Volume II—Advanced Features
Ninth Edition
This page intentionally left blank
Core Java
®
Volume II—Advanced
Features
Ninth Edition
Cay S. Horstmann
Gary Cornell
Upper Saddle River, NJ • Boston • Indianapolis • San Francisco
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Library of Congress Cataloging-in-Publication Data:
Horstmann, Cay S., 1959-
Core Java / Cay S. Horstmann, Gary Cornell.—Ninth edition.
pages cm
Includes index.
ISBN 978-0-13-708189-9 (v. 1 : pbk. : alk. paper) 1. Java (Computer program
language) I. Cornell, Gary. II. Title.
QA76.73.J38H6753 2013
005.13'3—dc23
2012035397
Copyright © 2013 Oracle and/or its affiliates. All rights reserved.
500 Oracle Parkway, Redwood Shores, CA 94065
Printed in the United States of America. This publication is protected by copyright, and permission must be
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ISBN-13: 978-0-13-708160-8
ISBN-10: 0-13-708160-X
Text printed in the United States on recycled paper at Edwards Brothers Malloy in Ann Arbor, Michigan.
Second printing, September 2013
Contents
Preface ........................................................................................................... xv
Acknowledgments ........................................................................................ xix
Chapter 1: Streams and Files ........................................................................ 1
1.1 Streams .......................................................................................................... 2
1.1.1 Reading and Writing Bytes .......................................................... 2
1.1.2 The Complete Stream Zoo ........................................................... 4
1.1.3 Combining Stream Filters ............................................................. 9
1.2 Text Input and Output ............................................................................. 13
1.2.1 How to Write Text Output ......................................................... 13
1.2.2 How to Read Text Input ............................................................. 16
1.2.3 Saving Objects in Text Format ................................................... 16
1.2.4 Character Sets ............................................................................... 20
1.3 Reading and Writing Binary Data .......................................................... 25
1.3.1 Random-Access Files .................................................................. 28
1.4 ZIP Archives .............................................................................................. 33
1.5 Object Streams and Serialization ............................................................ 36
1.5.1 Understanding the Object Serialization File Format .............. 42
1.5.2 Modifying the Default Serialization Mechanism .................... 48
1.5.3 Serializing Singletons and Typesafe Enumerations ............... 50
1.5.4 Versioning ..................................................................................... 52
1.5.5 Using Serialization for Cloning ................................................. 54
1.6 Working with Files .................................................................................... 57
1.6.1 Paths .............................................................................................. 57
1.6.2 Reading and Writing Files .......................................................... 60
1.6.3 Copying, Moving, and Deleting Files ....................................... 61
1.6.4 Creating Files and Directories ................................................... 62
1.6.5 Getting File Information ............................................................. 63
1.6.6 Iterating over the Files in a Directory ....................................... 64
1.6.7 ZIP File Systems ........................................................................... 67
v
vi Contents
1.7 Memory-Mapped Files ............................................................................. 68
1.7.1 The Buffer Data Structure ........................................................... 77
1.7.2 File Locking .................................................................................. 79
1.8 Regular Expressions .................................................................................. 81
Chapter 2: XML ............................................................................................. 93
2.1 Introducing XML ....................................................................................... 94
2.1.1 The Structure of an XML Document ......................................... 96
2.2 Parsing an XML Document ...................................................................... 99
2.3 Validating XML Documents .................................................................. 113
2.3.1 Document Type Definitions ..................................................... 114
2.3.2 XML Schema ............................................................................... 122
2.3.3 A Practical Example .................................................................. 125
2.4 Locating Information with XPath ......................................................... 140
2.5 Using Namespaces .................................................................................. 147
2.6 Streaming Parsers .................................................................................... 150
2.6.1 Using the SAX Parser ................................................................ 150
2.6.2 Using the StAX Parser ............................................................... 156
2.7 Generating XML Documents ................................................................. 159
2.7.1 Documents without Namespaces ............................................ 159
2.7.2 Documents with Namespaces ................................................. 160
2.7.3 Writing Documents ................................................................... 161
2.7.4 An Example: Generating an SVG File .................................... 161
2.7.5 Writing an XML Document with StAX .................................. 164
2.8 XSL Transformations .............................................................................. 173
Chapter 3: Networking ............................................................................... 185
3.1 Connecting to a Server ........................................................................... 185
3.1.1 Socket Timeouts ......................................................................... 190
3.1.2 Internet Addresses ..................................................................... 192
3.2 Implementing Servers ............................................................................ 194
3.2.1 Serving Multiple Clients ........................................................... 197
3.2.2 Half-Close ................................................................................... 201
3.3 Interruptible Sockets ............................................................................... 202
3.4 Getting Web Data .................................................................................... 210
3.4.1 URLs and URIs ........................................................................... 210
Contents vii
3.4.2 Using a URLConnection to Retrieve Information ........................... 212
3.4.3 Posting Form Data ..................................................................... 222
3.5 Sending E-Mail ........................................................................................ 230
Chapter 4: Database Programming .......................................................... 235
4.1 The Design of JDBC ................................................................................ 236
4.1.1 JDBC Driver Types .................................................................... 236
4.1.2 Typical Uses of JDBC ................................................................ 238
4.2 The Structured Query Language .......................................................... 239
4.3 JDBC Configuration ................................................................................ 245
4.3.1 Database URLs ........................................................................... 246
4.3.2 Driver JAR Files ......................................................................... 246
4.3.3 Starting the Database ................................................................ 247
4.3.4 Registering the Driver Class .................................................... 248
4.3.5 Connecting to the Database ..................................................... 249
4.4 Executing SQL Statements ..................................................................... 252
4.4.1 Managing Connections, Statements, and Result Sets ........... 255
4.4.2 Analyzing SQL Exceptions ....................................................... 256
4.4.3 Populating a Database .............................................................. 258
4.5 Query Execution ...................................................................................... 262
4.5.1 Prepared Statements ................................................................. 263
4.5.2 Reading and Writing LOBs ...................................................... 269
4.5.3 SQL Escapes ............................................................................... 271
4.5.4 Multiple Results ......................................................................... 272
4.5.5 Retrieving Autogenerated Keys .............................................. 273
4.6 Scrollable and Updatable Result Sets ................................................... 274
4.6.1 Scrollable Result Sets ................................................................. 274
4.6.2 Updatable Result Sets ............................................................... 277
4.7 Row Sets ................................................................................................... 281
4.7.1 Constructing Row Sets .............................................................. 282
4.7.2 Cached Row Sets ........................................................................ 282
4.8 Metadata ................................................................................................... 286
4.9 Transactions ............................................................................................. 296
4.9.1 Save Points .................................................................................. 297
4.9.2 Batch Updates ............................................................................ 298
viii Contents
4.9.3 Advanced SQL Types ............................................................... 300
4.10 Connection Management in Web and Enterprise Applications ....... 302
Chapter 5: Internationalization .................................................................. 305
5.1 Locales ....................................................................................................... 306
5.2 Number Formats ..................................................................................... 311
5.2.1 Currencies ................................................................................... 318
5.3 Date and Time .......................................................................................... 319
5.4 Collation ................................................................................................... 328
5.4.1 Collation Strength ...................................................................... 329
5.4.2 Decomposition ........................................................................... 329
5.5 Message Formatting ................................................................................ 336
5.5.1 Choice Formats .......................................................................... 338
5.6 Text Files and Character Sets ................................................................. 340
5.6.1 Character Encoding of Source Files ........................................ 340
5.7 Resource Bundles .................................................................................... 341
5.7.1 Locating Resource Bundles ...................................................... 342
5.7.2 Property Files ............................................................................. 343
5.7.3 Bundle Classes ........................................................................... 344
5.8 A Complete Example .............................................................................. 346
Chapter 6: Advanced Swing ...................................................................... 363
6.1 Lists ........................................................................................................... 364
6.1.1 The JList Component ................................................................. 364
6.1.2 List Models ................................................................................. 370
6.1.3 Inserting and Removing Values .............................................. 375
6.1.4 Rendering Values ...................................................................... 377
6.2 Tables ........................................................................................................ 381
6.2.1 A Simple Table ........................................................................... 382
6.2.2 Table Models .............................................................................. 386
6.2.3 Working with Rows and Columns ......................................... 390
6.2.3.1 Column Classes .......................................................... 390
6.2.3.2 Accessing Table Columns ......................................... 392
6.2.3.3 Resizing Columns ....................................................... 392
6.2.3.4 Resizing Rows ............................................................. 393
6.2.3.5 Selecting Rows, Columns, and Cells ....................... 394
Contents ix
6.2.3.6 Sorting Rows ............................................................... 395
6.2.3.7 Filtering Rows ............................................................. 396
6.2.3.8 Hiding and Displaying Columns ............................. 398
6.2.4 Cell Rendering and Editing ...................................................... 408
6.2.4.1 Rendering the Header ................................................ 409
6.2.4.2 Cell Editing .................................................................. 410
6.2.4.3 Custom Editors ........................................................... 411
6.3 Trees .......................................................................................................... 420
6.3.1 Simple Trees ............................................................................... 421
6.3.1.1 Editing Trees and Tree Paths .................................... 431
6.3.2 Node Enumeration .................................................................... 440
6.3.3 Rendering Nodes ....................................................................... 442
6.3.4 Listening to Tree Events ........................................................... 445
6.3.5 Custom Tree Models ................................................................. 453
6.4 Text Components .................................................................................... 462
6.4.1 Change Tracking in Text Components ................................... 463
6.4.2 Formatted Input Fields ............................................................. 467
6.4.2.1 Integer Input ............................................................... 468
6.4.2.2 Behavior on Loss of Focus ......................................... 468
6.4.2.3 Filters ............................................................................ 470
6.4.2.4 Verifiers ........................................................................ 471
6.4.2.5 Other Standard Formatters ....................................... 472
6.4.2.6 Custom Formatters ..................................................... 474
6.4.3 The JSpinner Component ............................................................. 485
6.4.4 Displaying HTML with the JEditorPane ...................................... 494
6.5 Progress Indicators .................................................................................. 501
6.5.1 Progress Bars .............................................................................. 501
6.5.2 Progress Monitors ...................................................................... 505
6.5.3 Monitoring the Progress of Input Streams ............................. 509
6.6 Component Organizers and Decorators .............................................. 514
6.6.1 Split Panes ................................................................................... 514
6.6.2 Tabbed Panes .............................................................................. 518
6.6.3 Desktop Panes and Internal Frames ....................................... 524
6.6.4 Cascading and Tiling ................................................................ 527
6.6.5 Vetoing Property Settings ........................................................ 531