Java Glossary : installing Java

Last updated 2004-06-28 by Roedy Green ©1996-2004 Canadian Mind Products

Java definitions: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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installing Java

Installing Java and the JDK can be quite a production. Though Java is multiplatform, the run-time installation makes use of very platform specific features such as AUTOEXEC.BAT and the PATH and SET commends. Before Java can become a common application language, (as opposed to Applet language) we need much simpler, foolproof installations. In particular we need:

1. One click installs.
2. Resolving conflicts between various JVMs.
3. Resolving conflicts between various versions of the Plug-In.
4. A simple way for an App to register which JVMs it would prefer to run under and have the best JVM automatically selected.
5. A simple way for an App to register the various class files it needs pre-installed, and the URL to get them if up-to-date versions are not already present.
6. Automatically building the necessary file extension associations you can use *.jar and *.class just the way you use *.exe.
7. A related problem is slow program load. The JVM should be installed once, with the classes preloaded. It should not be necessary to repeat that huge overhead for every tiny Java app.

CLASSPATH ¤ HelloWorld ¤ installer ¤ JDK ¤ JRE ¤ loading

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