# Installing JClass BWT

Before You Begin · Minimum Requirements · File Descriptions

Installing the Product

## Before You Begin

Be sure that your system and development environment are set up correctly before installing JClass BWT. You must be able to create and run simple Java applications or applets before attempting to use JClass BWT. Consult the Java(tm) Developer's Kit (JDK) documentation for assistance in determining the location of the Java compiler (javac) and the Java class files.

A good source of general information on Java is the Frequently Asked Questions (FAQ) list that can be found at the JavaSoft Web site at http://www.javasoft.com/faq2.html.

## Minimum Requirements

The following lists the development environment version requirements for JClass BWT. JClass BWT does not add to the system requirements of your development environment.JClass BWT must be used with JDK 1.1. The JDK can be obtained from the JavaSoft Web site at www.javasoft.com/products/JDK/index.html.

The JDK is currently available for these platforms:

- SPARC Solaris
- x86 Solaris
- Windows NT
- Windows 95
- MacOS

If you are planning to use JClass BWT components within Java applets, ensure you view their performance through a Java-capable Web browser. Ensure you are using Netscape Navigator 3.0 or higher, Microsoft Internet Explorer 3.0 or better, or any other Java-capable Web browser.

## File Descriptions

Once you have obtained the file jcbwt200t.zip or jcbwt200t.tar.Z, extract (unarchive) its contents. Both jcbwt200t.zip or jcbwt200t.tar.Z are functionally equivalent; the only difference between the two is the compression scheme used to compress their contents. When jcbwt200t.zip or jcbwt200t.tar.Z is extracted, the following directories and files will be available:

- jclass/api/ [directory]
- jclass/bwt/examples/ [directory]
- jclass/bwt/lib/jcbwt200t-classes.zip [file]
- jclass/readme.txt [file]

The jclass/api/ directory contains hypertext documentation of all of the JClass BWT classes. To view the information contained on the .html files, open jclass_bwt.html within a Frames-capable browser (such as Netscape Navigator 3.0 or Internet Explorer 3.0). If you do not have a Frames-capable Web browser, open bwt_default.html within your browser instead, which explains how the JClass BWT API is arranged, and then proceed to bwt_toc.html, the Table of Contents file.

The jclass/bwt/ and jclass/bwt/examples/ directories contain sample Java programs that incorporate JClass BWT components. Within each directory an index.html file has been provided, which provides a convenient way of accessing the Java applets within the directory. The Java programs can also be run directly from the command prompt. They can also be accessed through the HTML documentation from jclass_bwt.html.

The jclass/bwt/lib/jcbwt200t.zip file contains all of the JClass BWT Java class files. It is composed of Java .class files. Add a statement to your CLASSPATH that points to this directory. If you are using the JClass BWT release files in a development environment, do not attempt to extract (unarchive) the contents of the jcbwt200t-classes.zip file-its contents are automatically read by Java. However, if you are using JClass BWT in a server-based environment, extract the contents of jcbwt200t-classes.zip.

jclass/readme.txt is an ASCII text file containing information about the files contained in this release. readme.txt can be viewed through any text viewer (such as Notepad or WordPad) or a word processor.

## Installing the Product

The core of JClass BWT is the jcbwt200t-classes.zip file, which contains all of the compiled .java files that comprise the JClass BWT Java components. The jcbwt200t-classes.zip file can be located anywhere on a user's computer or on a Local Area Network (LAN), but you must indicate to the Java interpreter where it can find the Java classes it contains. This is done by setting the CLASSPATH environment variable. The CLASSPATH environment variable consists of the names of directories containing compiled Java classes. The structure of the CLASSPATH statement depends on the system being used.

If you plan to use the JClass BWT release files in a development environment, you can do not have to extract (unarchive) jcbwt200t-classes.zip, as the contents of this file are automatically read by Java. If you are using the JClass BWT release files in a server-based environment, extract (unarchive) jcbwt200t-classes.zip, as the .class files need to be directly accessible. Use an appropriate de-archiving tool to extract these files.

For more information on setting up CLASSPATH for your computing environment, see the "Setting CLASSPATH" section in the JClass BWT Overview.