JavaFX - On Windows 10 can I set an environment variable instead of using command line classpath switch?

Question

There's a book called "Java How to Program Early Objects" and a section describes compiling some .java files importing some JavaFX code. The book lists the following command to do it

javac *.java

This leads to a bunch of package javafx.xxx does not exist errors because it can't find the JavaFX libraries. Now I can use the -cp switch and it works:

javac -cp "D:\Program Files\Java\JavaFX14.0.2.1\lib\*"; *.java

However I was wondering if on a Windows 10 system I could set an environment variable so the command looks identical to the one in the book. Haven't been able to find anything. TIA

Answer 1

H/T to @dave_thompson_085 for putting me on the right track. The answer is a bit non-intuitive which is why I missed it at first.

Create an environment variable CLASSPATH, but instead of adding just the folder, you need to specify a wild card (so it looks EXACTLY like the command above) like so: