What is meta?
- Any Stack Exchange user can ask a question
- The community provides support, votes on ideas, and reports bugs
- Your voice helps shape the way Stack Exchange operates
You can embed animated gifs. So, use screen capture software to record the animation and then convert it to an animated
We only support a limited number of things that can be embedded in a post. Java applets aren't one of them, so the best you can do is just link to it.