When a Java/JavaFX application is tried to launch from a machine where there is no Java installed, the application re-directs the user for installation of the JRE into the machine. The JRE gets auto-downloaded (from java.sun.com) and the installation begins.

During the installation process (or even at the end), the user can not have this information, which particual JRE version is getting installed in his/her machine.

It will be better to display this information in any of the Java install window.