hi partner,
The JavaTM Runtime Environment (also known as the
Java Runtime or JRE) consists of the Java virtual machine*, the Java platform core classes, and supporting files. It is the runtime part of the Java Development Kit -- no compiler, no debugger, no tools. The JRE is the smallest set of executables and files that constitute the standard Java platform.
I hope this will help ya , if not completely then i m sure definately alil bit
Regards
Khurram Fakhar