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Java & OpenOffice.org

Java is required for complete OpenOffice.org functionality. Java is mainly required for the HSQLDB database engine (used by our database product Base) and to make use of accessibility and assistive technologies. Furthermore some wizards rely on Java technology. If you do not require these features, then you do not need to have Java installed for running OpenOffice.org.

So what does this imply for me? Base (the database component) relies completely on Java technologies to run, but other programs (like Writer, Calc and Impress) only need Java for special functionality. We do recommend that you have a Java Runtime Environment on your system, and therefore our default installation offering includes a JRE (which adds about 15MB to the total download size).

If you already have Java installed there is no need to download the OpenOffice.org installer with Java.

If you choose not to download OpenOffice.org with Java (or just forgot about it) you can easily install Java afterwards to get the missing functionality to work.

The Java Runtime Environment (JRE) or complete Java Development Kit (JDK), for programmers only, can be downloaded from java.com.

For installing Java on Windows machines, one might appreciate: Download Instructions for Windows offline.