Making the background white

Can someone help me make the background of my application white ?
All it does is display a simple curve in a window.
Here's the structure:
public class Curve
public static void main(String[] args)
JFrame window = new JFrame();
CurvePane pane = new CurvePane();
pane.setBackground(Color.white);
window.add(pane);
window.setVisible(true);
class CurvePane extends JComponent
public void paint(Graphics g)
//Draw curve here
It's a really simple program. But I just can't seem to get the background white. Any help at all would be greatly appreciated.
--Patrick

The setOpaque(true) statement worked except it created a few wierd errors.
I forgot to tell you that I programmed my curve to be able to be moved by the user. Using mouse listeners and so on. But now, after setting opaque to be true, it won't refresh the screen after the user moves it. The old line stays and is not erased.

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Hi,having diffulty having the background white, any pointers would be good, attached is a image

We also have a number of similar difficult backgrounds that need doing.
Regards Peter

Ouch. Once you're left with the subject matter you are going to have problems. There is colour bleed in the image you posted (perhaps not so much if you have a high-res original) and the background colour is present in both the shadows and in the reflections of the white handles and cable - all of which is going to make the edges a tough call. And even then there is still going to be some of the colour left in the reflections - which will look odd against a white background.
The best results I've got so far is by placing a white fill layer above the image and then painting in black those areas of the imaage I want to show through. But those rough edges, shadows and reflections make for a messy result. You can get a feel for the problem by applying the 'Find Edges' filter - this shows how tricky it is to isolate the image from the background.
Is the final result going to be produced in colour? I ask because if it is for use in a B&W publication, then some of the colour reflection issues can be resolved by discarding the colour information (i.e. converting the image to greyscale).
Cheers,
Neale
Insanity is hereditary, you get it from your children
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d

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Thank You.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP

Making the background white

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