ReadMe: International Components for Unicode for Java

Version: 1.2 Dec 26 2000


COPYRIGHT:
Copyright (c) 2000 International Business Machines Corporation and others. All Rights Reserved.


Contents

Introduction

Today's software market is a global one in which it is desirable to develop and maintain one application that supports a wide variety of national languages. International Components for Unicode for Java provides the following tools to help you write language independent applications:

Your comments are important to making this release successful.  We are committed to fixing any bugs, and will also use your feedback to help plan future releases.

IMPORTANT: Please make sure you understand the Copyright and License information.

What the International Components for Unicode for Java Contains

There are two ways to download the ICU4J releases,

For more details on how to download ICU4J directly from the web site, please also see http:/oss.software.ibm.com/developerworks/opensource/icu4j/download/index.html

Below, $Root is the placement of the icu directory in your file system, like "drive:\...\icu4j" in your environment. "drive:\..." stands for any drive and any directory on that drive that you chose to install icu4j into.

The following files describe the code drop:

readme.html (this file) describes the International Components for Unicode for Java
license.html contains IBM's public license

The source directories mirror package structure of the code.  The following directories contain source code and data files:

$Root/src/data/ Various data files used to generate ICU4J classes.  Most of the files contain Unicode information that is available from http://www.unicode.org/.  Used only by tools in the src/com/ibm/tools.
$Root/src/com/ibm/demo Demonstration applications and Applets.
$Root/src/com/ibm/test Tests for various ICU4J components.. For information about running the tests, see $Root/doc/com/ibm/test/TestAll.html.
$Root/src/com/ibm/tools Various tools used to generate ICU4J classes.
$Root/src/com/ibm/text The following components: 
  • RuleBasedBreakIterator
  • DictionaryBasedBreakIterator
  • Transliterator
  • Normalizer
  • BigNumberFormat
  • StringSearch
  • Unicode compression
$Root/src/com/ibm/util Calendars and Holidays
$Root/build Additional classes needed to build using Ant

The following directories are populated when you've built everything:

$Root/classes/ contains all class files
$Root/docs contains JavaDoc for all packages

Data organization:

Data is stored in various locations in ICU4J:

API Overview

The complete API documentation is available on the ICU4J web site:

Platform Dependencies

Parts of ICU4J depend on functionality that is only available in Java2 (JDk1.2) or later, although some components work under 1.1.  However, all components should be compiled using a Java2 compiler as even components that run using a 1.1.x JVM may require language features that are only present in 1.2.  Currently 1.1.x is unsupported and untested and you use the components on a 1.1.x system at your own risk.

How to Install and Build

To install ICU4J, simply place the prebuilt jar file icu4j.jar on your Java CLASSPATH.  No other files are needed.

The prerequisites for building ICU4J are a working JDK and the Ant build system:

Once Ant is installed, building is just a matter of typing ant in the ICU4J root directory. This causes the Ant build system to perform a build as specified by the file build.xml, located in the ICU4J root directory. You can give Ant options like -verbose, and you can specify targets. Ant will only build what's been changed and will resolve dependencies properly.

F:\icu4j>ant tests
Buildfile: build.xml
Project base dir set to: F:\icu4j
Executing Target: core
Compiling 71 source files to F:\icu4j\classes
Executing Target: tests
Compiling 24 source files to F:\icu4j\classes
Completed in 19 seconds

Current targets that you can give after ant:

all Build all targets.
core Build the main class files in the subdirectory classes. If no target is specified, core is assumed.
tests Build the test class files.
demos Build the demos.
tools Build the tools.
docs Run javadoc over the main class files, generating an HTML documentation tree in the subdirectory docs.
jar Create a jar archive icu4j.jar in the root ICU4J directory containing the main class files.
zip Create a zip archive of the source, docs, and jar file for distribution, excluding unwanted things like CVS directories and emacs backup files. The zip file icu4jYYYYMMDD.zip will be created in the directory above the root ICU4J directory, where YYYYMMDD is today's date. Any existing file of that name will be overwritten.
zipsrc Like the zip target, without the docs and the jar file. The zip file icu4jsrcYYYYMMDD.zip will be created in the directory above the root ICU4J directory.
clean Remove all built targets, leaving the source.

For more information, read the Ant documentation and the build.xml file.

After doing a build it is a good idea to run all the tests by typeing "java -classpath classes com.ibm.test.TestAll".

(As an alternative to using Ant, you can build simply by running javac and javadoc directly. This is not recommended, but a Windows batch file "buildall.bat" exists to get you started if you're really allergic to build systems. You may have to create destination directories.)

Where to Find More Information

http://oss.software.ibm.com/icu4j is a pointer to general information about the International Components for Unicode in Java

http://www.ibm.com/developer/unicode is a pointer to information on how to make applications global.

Submitting Comments, Requesting Features and Reporting Bugs

To submit comments, request features and report bugs, contact us through the ICU4J mailing list.
While we are not able to respond individually to each comment, we do review all comments.


Copyright © 2000 International Business Machines Corporation and others. All Rights Reserved.
IBM Center for Java Technology Silicon Valley,
10275 N De Anza Blvd., Cupertino, CA 95014
All rights reserved.