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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:
Where to find Java packages, .pet or .sfs

Alternatively, use script to make package:

buildscript make executable, run in terminal, sfs will go into /tmp, more info

Packages may also be available in the official repository for your Puppy either through the Puppy Package Manager or the SlickPet/QuickPet app.

Version Check and Enabling
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
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.

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

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