Why cannot run compiled JavaFX 11 class?

[Murray Eisenberg]

But the run command I gave, ending in just “HelloFX”, is exactly what was shown at https://openjfx.io/openjfx-docs/#install-javafx.

What exactly is it that I’d have to enter instead? 

(I did try adding extension “.class” but that didn’t help.)



> On 30 Oct2018, at 5:17 PM, Steve Hannah <steve at weblite.ca> wrote:
> 
> The "java" command expects a fully-qualified class name, not a file path as its argument.
> 
> E.g.  
> cd  /Users/me/Documents/java
> java --module-path $PATH_TO_FX --add-modules=javafx.controls HelloFX
> 
> 
> 
> On Tue, Oct 30, 2018 at 2:06 PM Murray Eisenberg <murray at math.umass.edu <mailto:murray at math.umass.edu>> wrote:
> This is under macOS Mojave (10.14).
> 
> Following instructions at https://openjfx.io/openjfx-docs/#install-javafx <https://openjfx.io/openjfx-docs/#install-javafx>, I compiled the sample HelloFX.java via:
> 
>      javac --module-path $PATH_TO_FX --add-modules=javafx.controls /Users/me/Documents/java/HelloFX.java 
> 
> But now if I attempt to run that...
> 
>      java --module-path $PATH_TO_FX --add-modules=javafx.controls /Users/me/Documents/java/HelloFX
> 
> ... I get error:
> 
>      Error: Could not find or load main class .Users.me.Documents.java.HelloFX
>      Caused by: java.lang.ClassNotFoundException: /Users/me/Documents/java/HelloFX 
> 
> Yet the file reported as not found is there:
> 
>      ls -l /Users/me/Documents/java/HelloFX.class
>      -rwxr--r--  1 me  staff  1336 Oct 30 16:01 /Users/murray/Documents/java/HelloFX.class
> 
> (I had already changed permissions to add `u+x` in case that was the issue, but apparently that was not the trouble.
> 
> What's wrong?
> 
> (Yes, `$PATH_TO_FX` does point to `javafx-sdk-11/lib`.)
> 
> ——
> Murray Eisenberg                                murray at math.umass.edu <mailto:murray at math.umass.edu>
> Mathematics & Statistics Dept.       
> University of Massachusetts Amherst              
> 
> 
> 
> 
> 
> 
> -- 
> Steve Hannah
> Web Lite Solutions Corp.

——
Murray Eisenberg                                murray at math.umass.edu
Mathematics & Statistics Dept.       
Lederle Graduate Research Tower      phone 240 246-7240 (H)
University of Massachusetts                
710 North Pleasant Street                 
Amherst, MA 01003-9305