painting graphics

In the Graphics2D (http://java.sun.com/j2se/1.5.0/docs/api/java/awt/Graphics2D.html) class there's a method setRenderingHint(RenderingHints.Key, Object) (http://java.sun.com/j2se/1.5.0/docs/api/java/awt/Graphics2D.html#setRenderingHint(java.awt.RenderingHints.Key,%20java.lang.Object)). You'll also want to look at the RenderingHints API (http://java.sun.com/j2se/1.5.0/docs/api/java/awt/RenderingHints.html).

You might also find this link (http://www.leepoint.net/notes-java/GUI-lowlevel/graphics/graphics2D/65aliasing.html) useful.

PS. Google: antialiasing java (http://www.google.com/search?client=safari&rls=en&q=antialiasing+java&ie=UTF-8&oe=UTF-8)