JCreator has a free version called learning edition if you want to run it that way, and then you would make a class called HelicopterForm (case matters) and paste this in there. There's a run button at the top and you can probably figure out the rest from there. You need the images from the zip file inside the project folder though, so you have to download the .zip.
Or, download the zip file and run the .exe inside it :p
I'll try to get a web version of this running today, I think I know how to now.