Java - set opacity in JPanel

Question

Let\'s say I want to make the opacity of a JPanel %20 viewable? I don\'t mean setOpaque (draw or not draw) or setVisible (show or hide)... I mean make it see-through JPanel.

Answer 1

panel.setBackground( new Color(r, g, b, a) );

You should also look at Backgrounds With Transparency to understand any painting problems you might have when you use this.