Where can I download the java running environment that OpenOffice.org needs?

If you just need a Java runtime environment, you just need to download a jre separately. The download address is:/javase/javase/downloads/index.jsp Click the red "Download JRE" button to enter a page, and select Windows (that is, the operating system you are using) on the platform.

Check the 6U 18 check box of Java se runtime environment where I agree with JavaFX 1 license agreement, then select the red "Continue" button and select Windows offline installation.

JRE-6U 18-Windows-I586。 Exe can be downloaded.

If you still need a Java development environment, namely JDK (including jre), its download address is:

/javase/downloads/widget/jdk6.jsp, click the red download button to download.