posted 18 years ago
I haven't tried drawing a line like that for some time, but as far as I can remember, you don't even try it on a JFrame.
You add a JPanel to the JFrame, and put such drawing into the paintComponent(Graphics g) method.
Two warnings
You have to put super.paintComponent(); as the first line of your method.There is also a paintComponents() method, so don't get confused with it.Then you get a Graphics object in the method, which makes it easy to write g.drawLine(x1, y1, x2, y2);
[ September 19, 2006: Message edited by: Campbell Ritchie ]