Minimal JavaFX Demo

Here are the absolute simplest steps to get a demo of JavaFX up an running:

1. Download the 3 JavaFX jar files:
   
javafxrt.jar
Filters.jar
swing-layout.jar
   
   You can get them from here:
   
   https://openjfx.dev.java.net/source/browse/openjfx/trunk/lib/


2. Create a text file called Hello.fx:
   

   import javafx.ui.*;
   
   Frame {
       content: Label {
           text: "Hello JavaFX"
       }
       visible: true
   }



3. Add the 3 jars and Hello.fx to your classpath


4. Run the script like so:
   
   java net.java.javafx.FXShell Hello
   
   Note: The name Hello is resolved via the classpath (not the file system).
   
   Here is how my folders looked:
   
   
~/DavesJavafxDemo/classes/Hello.fx
~/DavesJavafxDemo/lib/javafxrt.jar
~/DavesJavafxDemo/lib/Filters.jar
~/DavesJavafxDemo/lib/swing-layout.jar
   
   Thus, my classpath must include the classes folder plus the 3 jar files:
   
   
~/DavesJavafxDemo/classes
~/DavesJavafxDemo/lib/javafxrt.jar
~/DavesJavafxDemo/lib/Filters.jar
~/DavesJavafxDemo/lib/swing-layout.jar
   
   Here is the shell script I used:
   
   

   cp=./lib/swing-layout.jar:./lib/Filter.jar:./lib/javafxrt.jar:./classes
   java -classpath $cp net.java.javafx.FXShell Hello

   
   Note: The way I have the paths specified, you must run this script from within DavesJavafxDemo folder.
   
   On Windows, the shell script (runDemo.bat) would look like this:
   
   

   set cp=.\lib\swing-layout.jar;.\lib\Filter.jar;.\lib\javafxrt.jar;.\classes
   java -classpath %cp% net.java.javafx.FXShell Hello