Loading Screen?

I was just curious, when viewing an app in Java, you see the java animation load and the entire screen turns white and stays there for a number of seconds before switching to the game.

Is it possible to put a loading screen instead of others seeing a blank white screen? It occurred to me that if you upload a large file size, it will take longer to load. And if you have something quite large (I plan to), it may take a minute or two to load. But if they see a white screen for that long, the first impression is that it is a)unprofessional looking,
and b)May not work so they would go to another page before it had time to load.

Hi Ausomeman. I have a loading screen example on my website that you might be able to incorporate into your game. The loading time for the screen can be adjusted.

Marv