Transparent JFrame background

Question

Is it possible to make a JFrame that has a transparent background and draw an image on it, so only the image will be visible with no border or background?

Answer 1

Yes, it's possible in many ways. This is one of them:

setUndecorated(true);
setBackground(new Color(1.0f,1.0f,1.0f,0.5f));

4th float (which I set to 0.5f) in Color's constructor is alpha channel. It can be 0.0f - 1.0f depend on transparency you want.