PuppyLinux: Java Runtime Environment

Java Runtime Environment runs programs written in Java. Not to be confused with JavaScript.

Install the appropriate package, newer versions should be more secure (1.7u45 October 2013):

Alternatively, use script to make package:

Packages may also be available in the SlickPet/QuickPet app.

Verify the installed version via the command-line interface:

java -version

Alternatively visit one of the following pages:

testjava (java.com)
version (javatester.org) - finds even if disabled in browser

A symlink may need adding to the plugin directory, for example for seamonkey:

ln -s /usr/java/plugin/i386/ns7/libjavaplugin_oji.so ~/.mozilla/plugins/libjavaplugin_oji.so

Web browser configuration confirmation (JavaScript needs to be enabled within the Web browser):

Enable Java: Tools > Options > LibreOffice > Java

Enable Java: Edit > Preferences > Advanced > Enable Java

Enable Java: Tools > Options > Content > Enable Java

Opera

Enable Java: Tools > Quick Preferences > Enable Plug-ins
Enable JavaScript: Tools > Quick Preferences > Enable JavaScript

Applications may need to be configured and re-started after installation.

Java - page about the programming language
jar - package of multiple Java source files
File Types

PuppyLinux : JavaRuntimeEnvironment