Java SE (Java Platform, Standard Edition)

I want to use Dual Monitor (Screen Device) in JavaFX2 Application.

In Java2SE , JFrame take GraphicsConfiguration arg.

GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] gs = ge.getScreenDevices();
GraphicsDevice gd = gs[0];
GraphicsConfiguration gc = gd.getDefaultConfiguration();
JFrame jf = new JFrame(gc);
......


How can I use Dual Monitor in JavaFX2 ?

Thank you.