@Builderboy2005 You're right: Bresenham has super fast algorithms (including one for a circle!). I've put them in my Fast graphics scenario, do you want to give some feedback?

I don't know why, but I made a version of it using my Fast graphics scenario, and I think the circles look nicer. Wanna give it a try?

BlueJ works with Java, Greenfoot works with Java, of course it would!! You would only need to download the scenario to see the output of 'System.out.println' :)