Moved this to "Starting with Gamestudio". To answer your question: No you cannot use Java "in Gamestudio". However, I remember a user who wrote a wrapper for Java. But even if you should use this wrapper or if you should write your own, it won't enable Gamestudio to run in every environment (I assume that you mean operating systems). Gamestudio is DirectX based and thus it will obviously run on Windows only. Although you could use Wine or similar technologies on other platforms of course, but you don't need to use Java then either.
