Geometric shapes

I never really got into graphics in Java so i decided to try and learn somthing different other than the same crap i usually code. :lol: I am familiar with some of the methods of the Graphics class that are used render geometric shapes such as arcs and rectangles but from what i have been reading there are classes within a package named java.awt.geom that are used to represent these geometric shapes. Is anyone familiar with these classes? Also what is the method you use to render? Call a method off the graphics context, use the classes within the java.awt.geom namespace or cast a graphics context to a Graphics2D type? Thanks.