As asked and answered here, python has a useful way of deployment without installers. Can Java do the same thing?
You can do it with NetBeans and a couple of tools. The result is a standalone installer that packages everything you need, so your software can run without installing JRE. It is also completely portable, because it install your software on AppData, that is, it does not need privileges to be installed. Maybe you can even configure the installation path, or you can install it on your own PC, locate the folder and copy it to distribute your software in that way.
Check the Answer I made on different post