Where to start for building a simple graphical application

I'm very new to graphics feature of Java. I want to build a simple binary search tree where users can enter in a textfield the data to insert/delete/search or upload from a file. I'm more familiar w/ console application, so where should I get started. There's Swing, Graphics/Graphics2d, JApplet, applet. Can I mix and match? I want to keep it simple, have enough basic knowledge of graphics feature in Java.

Play with awt first. It is like the old way to do graphics (I guess one could say) and swing would be a newer way. The more you play with it the more you will get a feel for what suits your needs. The discovery of it all is part of the fun.