Java Cookbook

by Darwin, Ian F.

• ISBN13: 9780596007010
• ISBN10: 0596007019
• Edition: 2nd
• Format: Paperback
• Copyright: 2004-06-30
• Publisher: Oreilly & Associates Inc

Summary

The Java Cookbook is a comprehensive collection of problems, solutions, and practical examples for anyone programming in Java. In this major revision, developers will find hundreds of tried-and-true Java "recipes" covering all of the major APIs from the 1.4 version of Java. The book also offers significant "first look" recipes for the most important features of the new 1.5 version, which is in beta release. It also includes expanded Mac OS X Panther coverage, and serves as a great "jumping-off place" for Java developers who want to get started in areas outside of their specialization.

Author Biography

Ian F. Darwin has worked in the computer industry for three decades: with Unix since 1980, Java since 1995, and OpenBSD since 1998. He wrote the freeware file(1) command used on Linux and BSD and is the author of Checking C Programs with Lint, Java Cookbook, and over seventy articles and several courses (both university and commercial) on C and Unix. In addition to programming and consulting, Ian teaches Unix, C, and Java for Learning Tree International, one of the world's largest technical training companies. He runs OpenBSD on most of his computers, and he runs a mirror of The Unix History Society archive.

Table of Contents

Preface	xv
1. Getting Started: Compiling, Running, and Debugging	1	(34)
1.1 Compiling and Running Java: JDK	1	(2)
1.2 Editing and Compiling with a Color-Highlighting Editor	3	(1)
1.3 Compiling, Running, and Testing with an IDE	4	(7)
1.4 Using CLASSPATH Effectively	11	(3)
1.5 Using the com.darwinsys API Classes from This Book	14	(1)
1.6 Compiling the Source Code Examples from This Book	15	(1)
1.7 Automating Compilation with Ant	16	(1)
1.8 Running Applets	17	(3)
1.9 Dealing with Deprecation Warnings	20	(2)
1.10 Conditional Debugging Without #ifdef	22	(2)
1.11 Debugging Printouts	24	(1)
1.12 Maintaining Program Correctness with Assertions	25	(1)
1.13 Debugging with JDB	26	(2)
1.14 Unit Testing: Avoid the Need for Debuggers	28	(2)
1.15 Getting Readable Tracebacks	30	(2)
1.16 Finding More Java Source Code	32	(1)
1.17 Program: Debug	33	(2)
2. Interacting with the Environment	35	(15)
2.1 Getting Environment Variables	35	(2)
2.2 System Properties	37	(2)
2.3 Writing JDK Release-Dependent Code	39	(1)
2.4 Writing Operating System-Dependent Code	40	(2)
2.5 Using Extensions or Other Packaged APIs	42	(1)
2.6 Parsing Command-Line Arguments	43	(7)
3. Strings and Things	50	(35)
3.1 Taking Strings Apart with Substrings	52	(1)
3.2 Taking Strings Apart with StringTokenizer	53	(3)
3.3 Putting Strings Together with +, StringBuilder (JDK 1.5), and StringBuffer	56	(3)
3.4 Processing a String One Character at a Time	59	(1)
3.5 Aligning Strings	60	(3)
3.6 Converting Between Unicode Characters and Strings	63	(1)
3.7 Reversing a String by Word or by Character	64	(1)
3.8 Expanding and Compressing Tabs	65	(5)
3.9 Controlling Case	70	(1)
3.10 Indenting Text Documents	71	(2)
3.11 Entering Nonprintable Characters	73	(1)
3.12 Trimming Blanks from the End of a String	74	(1)
3.13 Parsing Comma-Separated Data	75	(5)
3.14 Program: A Simple Text Formatter	80	(2)
3.15 Program: Soundex Name Comparisons	82	(3)
4. Pattern Matching with Regular Expressions	85	(32)
4.1 Regular Expression Syntax	87	(7)
4.2 Using regexes in Java: Test for a Pattern	94	(3)
4.3 Finding the Matching Text	97	(2)
4.4 Replacing the Matched Text	99	(1)
4.5 Printing All Occurrences of a Pattern	100	(3)
4.6 Printing Lines Containing a Pattern	103	(1)
4.7 Controlling Case in Regular Expressions	104	(1)
4.8 Matching "Accented" or Composite Characters	105	(1)
4.9 Matching Newlines in Text	106	(2)
4.10 Program: Apache Logfile Parsing	108	(2)
4.11 Program: Data Mining	110	(2)
4.12 Program: Full Grep	112	(5)
5. Numbers	117	(37)
5.1 Checking Whether a String Is a Valid Number	119	(1)
5.2 Storing a Larger Number in a Smaller Number	120	(1)
5.3 Converting Numbers to Objects and Vice Versa	121	(1)
5.4 Taking a Fraction of an Integer Without Using Floating Point	122	(1)
5.5 Ensuring the Accuracy of Floating-Point Numbers	123	(2)
5.6 Comparing Floating-Point Numbers	125	(2)
5.7 Rounding Floating-Point Numbers	127	(1)
5.8 Formatting Numbers	128	(2)
5.9 Converting Between Binary, Octal, Decimal, and Hexadecimal	130	(1)
5.10 Operating on a Series of Integers	131	(1)
5.11 Working with Roman Numerals	132	(4)
5.12 Formatting with Correct Plurals	136	(2)
5.13 Generating Random Numbers	138	(1)
5.14 Generating Better Random Numbers	139	(1)
5.15 Calculating Trigonometric Functions	140	(1)
5.16 Taking Logarithms	141	(1)
5.17 Multiplying Matrices	141	(2)
5.18 Using Complex Numbers	143	(2)
5.19 Handling Very Large Numbers	145	(2)
5.20 Program: TempConverter	147	(4)
5.21 Program: Number Palindromes	151	(3)
6. Dates and Times	154	(22)
6.1 Finding Today's Date	155	(1)
6.2 Printing Date/Time in a Given Format	156	(3)
6.3 Representing Dates in Other Epochs	159	(1)
6.4 Converting YMDHMS to a Calendar or Epoch Seconds	160	(1)
6.5 Parsing Strings into Dates	161	(1)
6.6 Converting Epoch Seconds to DMYHMS	162	(1)
6.7 Adding to or Subtracting from a Date or Calendar	163	(2)
6.8 Difference Between Two Dates	165	(1)
6.9 Comparing Dates	165	(2)
6.10 Day of Week/Month/Year or Week Number	167	(1)
6.11 Creating a Calendar Page	168	(3)
6.12 Measuring Elapsed Time	171	(2)
6.13 Sleeping for a While	173	(1)
6.14 Program: Reminder Service	173	(3)
7. Structuring Data with Java	176	(32)
7.1 Using Arrays for Data Structuring	177	(1)
7.2 Resizing an Array	178	(2)
7.3 Like an Array, but More Dynamic	180	(1)
7.4 Using Iterators for Data-Independent Access	181	(2)
7.5 Structuring Data in a Linked List	183	(2)
7.6 Mapping with Hashtable and HashMap	185	(1)
7.7 Storing Strings in Properties and Preferences	186	(4)
7.8 Sorting a Collection	190	(3)
7.9 Avoiding the Urge to Sort	193	(2)
7.10 Eschewing Duplication	195	(1)
7.11 Finding an Object in a Collection	196	(2)
7.12 Converting a Collection to an Array	198	(1)
7.13 Rolling Your Own Iterator	199	(2)
7.14 Stack	201	(1)
7.15 Multidimensional Structures	202	(2)
7.16 Finally, Collections	204	(2)
7.17 Program: Timing Comparisons	206	(2)
8. Data Structuring with Generics, foreach, and Enumerations (JDK 1.5)	208	(14)
8.1 Using Generic Collections	209	(1)
8.2 Using "foreach" Loops	210	(1)
8.3 Avoid Casting by Using Generics	211	(3)
8.4 Let Java Convert with AutoBoxing and AutoUnboxing	214	(1)
8.5 Using Typesafe Enumerations	215	(4)
8.6 Program: Medialnvoicer	219	(3)
9. Object-Oriented Techniques	222	(25)
9.1 Printing Objects: Formatting with toString()	224	(1)
9.2 Overriding the Equals Method	225	(3)
9.3 Overriding the hashCode Method	228	(1)
9.4 The Clone Method	229	(2)
9.5 The Finalize Method	231	(2)
9.6 Using Inner Classes	233	(1)
9.7 Providing Callbacks via Interfaces	234	(4)
9.8 Polymorphism/Abstract Methods	238	(1)
9.9 Passing Values	239	(3)
9.10 Enforcing the Singleton Pattern	242	(1)
9.11 Roll Your Own Exceptions	243	(1)
9.12 Program: Plotter	244	(3)
10. Input and Output	247	(50)
10.1 Reading Standard Input	248	(4)
10.2 Writing Standard Output	252	(1)
10.3 Printing with the 1.5 Formatter	253	(4)
10.4 Scanning a File with StreamTokenizer	257	(5)
10.5 Scanning Input with the 1.5 Scanner Class	262	(3)
10.6 Opening a File by Name	265	(1)
10.7 Copying a File	266	(3)
10.8 Reading a File into a String	269	(1)
10.9 Reassigning the Standard Streams	270	(1)
10.10 Duplicating a Stream as It Is Written	270	(3)
10.11 Reading/Writing a Different Character Set	273	(1)
10.12 Those Pesky End-of-Line Characters	274	(1)
10.13 Beware Platform-Dependent File Code	274	(1)
10.14 Reading "Continued" Lines	275	(5)
10.15 Binary Data	280	(1)
10.16 Seeking	281	(1)
10.17 Writing Data Streams from C	282	(2)
10.18 Saving and Restoring Java Objects	284	(3)
10.19 Preventing ClassCastExceptions with SerialVersionUID	287	(2)
10.20 Reading and Writing JAR or Zip Archives	289	(3)
10.21 Reading and Writing Compressed Files	292	(1)
10.22 Program: Text to PostScript	293	(4)
11. Directory and Filesystem Operations	297	(16)
11.1 Getting File Information	297	(3)
11.2 Creating a File	300	(1)
11.3 Renaming a File	301	(1)
11.4 Deleting a File	302	(1)
11.5 Creating a Transient File	303	(2)
11.6 Changing File Attributes	305	(1)
11.7 Listing a Directory	306	(2)
11.8 Getting the Directory Roots	308	(1)
11.9 Creating New Directories	309	(1)
11.10 Program: Find	310	(3)
12. Programming External Devices: Serial and Parallel Ports	313	(29)
12.1 Choosing a Port	315	(3)
12.2 Opening a Serial Port	318	(4)
12.3 Opening a Parallel Port	322	(3)
12.4 Resolving Port Conflicts	325	(3)
12.5 Reading and Writing: Lock-Step	328	(3)
12.6 Reading and Writing: Event-Driven	331	(4)
12.7 Reading and Writing: Threads	335	(2)
12.8 Program: Penman Plotter	337	(5)
13. Graphics and Sound	342	(30)
13.1 Painting with a Graphics Object	342	(2)
13.2 Testing Graphical Components	344	(1)
13.3 Drawing Text	344	(1)
13.4 Drawing Centered Text in a Component	345	(2)
13.5 Drawing a Drop Shadow	347	(2)
13.6 Drawing Text with 2D	349	(3)
13.7 Drawing Text with an Application Font	352	(2)
13.8 Drawing an Image	354	(4)
13.9 Playing a Sound File	358	(2)
13.10 Playing a Video Clip	360	(2)
13.11 Printing in Java	362	(4)
13.12 Program: PlotterAWT	366	(2)
13.13 Program: Grapher	368	(4)
14. Graphical User Interfaces	372	(49)
14.1 Displaying GUI Components	373	(2)
14.2 Designing a Window Layout	375	(3)
14.3 A Tabbed View of Life	378	(1)
14.4 Action Handling: Making Buttons Work	379	(2)
14.5 Action Handling Using Anonymous Inner Classes	381	(2)
14.6 Terminating a Program with "Window Close"	383	(4)
14.7 Dialogs: When Later Just Won't Do	387	(2)
14.8 Catching and Formatting GUI Exceptions	389	(2)
14.9 Getting Program Output into a Window	391	(4)
14.10 Choosing a Value with JSpinner	395	(1)
14.11 Choosing a File with JFileChooser	396	(3)
14.12 Choosing a Color	399	(3)
14.13 Formatting JComponents with HTML	402	(1)
14.14 Centering a Main Window	403	(1)
14.15 Changing a Swing Program's Look and Feel	404	(4)
14.16 Enhancing Your GUI for Mac OS X	408	(2)
14.17 Program: Custom Font Chooser	410	(4)
14.18 Program: Custom Layout Manager	414	(7)
15. Internationalization and Localization	421	(20)
15.1 Creating a Button with I18N Resources	422	(1)
15.2 Listing Available Locales	423	(1)
15.3 Creating a Menu with I18N Resources	424	(1)
15.4 Writing Internationalization Convenience Routines	425	(2)
15.5 Creating a Dialog with I18N Resources	427	(1)
15.6 Creating a Resource Bundle	428	(1)
15.7 Extracting Strings from Your Code	429	(1)
15.8 Using a Particular Locale	430	(1)
15.9 Setting the Default Locale	431	(1)
15.10 Formatting Messages	432	(2)
15.11 Program: MenuIntl	434	(2)
15.12 Program: BusCard	436	(5)
16. Network Clients	441	(26)
16.1 Contacting a Server	443	(1)
16.2 Finding and Reporting Network Addresses	444	(2)
16.3 Handling Network Errors	446	(1)
16.4 Reading and Writing Textual Data	447	(2)
16.5 Reading and Writing Binary Data	449	(2)
16.6 Reading and Writing Serialized Data	451	(2)
16.7 UDP Datagrams	453	(2)
16.8 Program: TFTP UDP Client	455	(4)
16.9 Program: Telnet Client	459	(2)
16.10 Program: Chat Client	461	(6)
17. Server-Side Java: Sockets	467	(34)
17.1 Opening a Server for Business	467	(3)
17.2 Returning a Response (String or Binary)	470	(4)
17.3 Returning Object Information	474	(1)
17.4 Handling Multiple Clients	475	(5)
17.5 Serving the HTTP Protocol	480	(2)
17.6 Securing a Web Server with SSL and JSSE	482	(2)
17.7 Network Logging	484	(5)
17.8 Network Logging with log4j	489	(2)
17.9 Network Logging with JDK 1.4	491	(2)
17.10 Finding Network Interfaces	493	(2)
17.11 Program: A Java Chat Server	495	(6)
18. Network Clients II: Applets and Web Clients	501	(30)
18.1 Embedding Java in a Web Page	501	(2)
18.2 Applet Techniques	503	(2)
18.3 Contacting a Server on the Applet Host	505	(3)
18.4 Making an Applet Show a Document	508	(2)
18.5 Making an Applet Run JavaScript	510	(1)
18.6 Making an Applet Run a CGI Script	511	(1)
18.7 Reading the Contents of a URL	512	(1)
18.8 URI, URL, or URN?	513	(2)
18.9 Extracting HTML from a URL	515	(2)
18.10 Extracting URLs from a File	517	(2)
18.11 Converting a Filename to a URL	519	(1)
18.12 Program: MkIndex	519	(5)
18.13 Program: LinkChecker	524	(7)
19. Java and Electronic Mail	531	(39)
19.1 Sending Email: Browser Version	531	(4)
19.2 Sending Email: For Real	535	(4)
19.3 Mail-Enabling a Server Program	539	(4)
19.4 Sending MIME Mail	543	(2)
19.5 Providing Mail Settings	545	(1)
19.6 Sending Mail Without Using JavaMail	546	(4)
19.7 Reading Email	550	(5)
19.8 Program: MailReaderBean	555	(4)
19.9 Program: MailClient	559	(11)
20. Database Access	570	(45)
20.1 Easy Database Access with JDO	571	(3)
20.2 Text-File Databases	574	(5)
20.3 DBM Databases	579	(3)
20.4 JDBC Setup and Connection	582	(3)
20.5 Connecting to a JDBC Database	585	(3)
20.6 Sending a JDBC Query and Getting Results	588	(2)
20.7 Using JDBC Prepared Statements	590	(4)
20.8 Using Stored Procedures with JDBC	594	(1)
20.9 Changing Data Using a ResultSet	595	(1)
20.10 Storing Results in a RowSet	596	(2)
20.11 Changing Data Using SQL	598	(2)
20.12 Finding JDBC Metadata	600	(4)
20.13 Program: SQLRunner	604	(11)
21. XML	615	(19)
21.1 Generating XML from Objects	618	(1)
21.2 Transforming XML with XSLT	619	(3)
21.3 Parsing XML with SAX	622	(2)
21.4 Parsing XML with DOM	624	(4)
21.5 Verifying Structure with a DTD	628	(2)
21.6 Generating Your Own XML with DOM	630	(2)
21.7 Program: xml2mif	632	(2)
22. Distributed Java: RMI	634	(18)
22.1 Defining the RMI Contract	635	(2)
22.2 Creating an RMI Client	637	(1)
22.3 Creating an RMI Server	638	(3)
22.4 Deploying RMI Across a Network	641	(1)
22.5 Program: RMI Callbacks	641	(5)
22.6 Program: NetWatch	646	(6)
23. Packages and Packaging	652	(31)
23.1 Creating a Package	653	(1)
23.2 Documenting Classes with Javadoc	653	(4)
23.3 Beyond JavaDoc: Annotations/Metadata (JDK 1.5) and XDoclet	657	(3)
23.4 Archiving with jar	660	(1)
23.5 Running an Applet from a JAR	661	(1)
23.6 Running an Applet with a Modern JDK	661	(4)
23.7 Running a Main Program from a JAR	665	(2)
23.8 Preparing a Class as a JavaBean	667	(4)
23.9 Pickling Your Bean into a JAR	671	(1)
23.10 Packaging a Servlet into a WAR File	672	(1)
23.11 "Write Once, Install Anywhere"	673	(1)
23.12 "Write Once, Install on Mac OS X"	673	(2)
23.13 Java Web Start	675	(6)
23.14 Signing Your JAR File	681	(2)
24. Threaded Java	683	(42)
24.1 Running Code in a Different Thread	685	(3)
24.2 Displaying a Moving Image with Animation	688	(4)
24.3 Stopping a Thread	692	(2)
24.4 Rendezvous and Timeouts	694	(1)
24.5 Synchronizing Threads with the synchronized Keyword	695	(6)
24.6 Simplifying Synchronization with 1.5 Locks	701	(4)
24.7 Synchronizing Threads with wait() and notifyAll()	705	(6)
24.8 Simplifying Producer-Consumer with the 1.5 Queue Interface	711	(2)
24.9 Background Saving in an Editor	713	(1)
24.10 Program: Threaded Network Server	714	(8)
24.11 Simplifying Servers Using the Concurrency Utilities (JDK 1.5)	722	(3)
25. Introspection, or "A Class Named Class"	725	(27)
25.1 Getting a Class Descriptor	726	(1)
25.2 Finding and Using Methods and Fields	727	(4)
25.3 Loading and Instantiating a Class Dynamically	731	(2)
25.4 Constructing a Class from Scratch	733	(1)
25.5 Performance Timing	734	(3)
25.6 Printing Class Information	737	(2)
25.7 Program: CrossRef	739	(6)
25.8 Program: AppletViewer	745	(7)
26. Using lava with Other Languages	752	(25)
26.1 Running a Program	752	(3)
26.2 Running a Program and Capturing Its Output	755	(4)
26.3 Mixing Java and Scripts with BSF	759	(4)
26.4 Marrying Java and Perl	763	(4)
26.5 Blending in Native Code (C/C++)	767	(6)
26.6 Calling Java from Native Code	773	(1)
26.7 Program: DBM	773	(4)
Afterword	777	(2)
Index	779