Please refer to this [tutorial](http://code.makery.ch/library/javafx-8-tutorial/part1/) or to the official documentation. The scene builder executable may be found [here](http://gluonhq.com/open-source/scene-builder/) and for autocompletion you may install [e(fx)clipse](http://www.eclipse.org/efxclipse/install.html#for-the-lazy).