Error message

I'm having trouble getting the database app of LibreOffice to run in windows 8.1 (64-bit). When I try to launch it, I receive an error message that days I don't have Java runtime environment installed. I do have Java installed, so I dint understand why I'm receiving this error message. Can anyone point me in the right direction? I appreciate any and all assistance you can provide. Thank you.

-Mark

What version of Java do you have installed?

What version of Java do you have installed?

Also, the "bit-ness" of the installed Java needs to match the bit-ness of the installed LibreOffice. A 32-bit LO needs a 32-bit Java, a 64-bit LO needs a 64-bit Java. (Independent of the OS being 64-bit.)