I looked at a simple JavaFX version of the ubiquitous Hello World example from a NetBeans 7.1 beta perspective in the blog post Hello JavaFX 2.0: Introduction by NetBeans 7.1 beta . In this post ...

Its main() method executes System.out.println("hello, world"); to send the contents of the “ hello, world ” string to the standard output stream, which is typically the command line.