I wanted to create an autoclicker that should have different functions. This autoclicker should have a JFrame in which you can make some configurations. I also wanted to offer a way to place the window "up". It should be possible to place the windows in a corner and it should also stay at the top when you are in a full screen. For example, if I am in a game, I want to be able to play the game as normal. While I'm playing the JFrame should stay above the game so I can see autoclickerframe. When I click on the window on which I can make settings, this should happen without the fullscreen window is reduced.
So my question is how this would be possible. I have seen "overlays" like this often already. Isn't overwolfs layout also working like my frame should? Is this even possible with java, if yes may one tell me how?