Find it in the registry but not in the folders/files

I installed Java 7 and I find it in the Programs and Features and in the Registry but not in Windows Explorer.

Image may be NSFW.
Clik here to view.

I need to use Java for a fun program. I have installed and I know I have both x32bit and x64 bit versions. But where are they? More details here:

http://hodentek.blogspot.com/2014/07/have-you-installed-java-on-your-windows.html

Jayaram Krishnaswamy