i have a bunch of images

1.jpg, 2.jpg etc..

I have a class called banner and wondering how to get it to randomised threw the pics?

Thanks

read the filenames into a List, generate a sequence of random numbers, et voila.

but have ya got any examples of this?

You should be able to defer the code from what I wrote.
It's simple really.

List map = new ArrayList();
// loop through files
while (files.hasNext()) {
  map.add(files.next());
}

or something like that.
That's of course not complete code but should serve as a starting point ;)

Use a Random object or something:

Random random = new Random(2);

int rotation = random.nextInt()+1;