Exception in init method - JavaFX

Question

I get this exception after exporting into a .jar file with eclipse. IntelliJ says the same. But my program is working fine in eclipse.

Exception in thread \"main         


        

Answer 1

The javafx.application.Application class is going to be found in a javafx library; in an IDE such as eclipse you generally configure a project to refer to those libraries it needs for compilation and execution. When you put your code into a jar and run it outside the IDE, you need to provide the library to the runtime a different way.

A standard way to do this is to set a classpath which has references to both the application jar and to any libraries it needs; the DOS command to do this would look something like:

set classpath=c:\myProjects\myApplication\myJar.jar;c:\java\libaries\javafx\jfxrt.jar

and then java would have access to the classes in both those jar files