I am currently programming a forum-like interface in the Java programming language. For GUI making I'm using the GUI builder that comes with NetBeans (Matisse). It's a very good GUI builder for most things, but I'm wondering if there is a "dynamic" GUI builder. This would allow me to have the GUI builder add components when certain requirements are filled, but not take up space when they are not there. (So not just using the .isVisble method).
I doubt this exists, but I thought I'd ask.