Paint problem =P

Im a newbeginner on painting in java ... Im trying to paint a circle in a JPanel.
I made a class for the painting:

Code:

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import javax.swing.*;
import java.awt.*;


public class Graphic extends JPanel {
 

  public void paintComponent(Graphics g) {
      super.paintComponent(g);

      g.setColor(Color.BLACK);
      g.fillOval(400, 400, 50, 50);
     

    }
  }

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and in my GUI constructor i made a object and added it to my panel.

Code:

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Graphic g = new Graphic();
 cordinatepanel.add(g);

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so why is it not painting anyting??? Thanks

Do you know if your Graphic panel is big enough to show the drawing, that it is larger than 400 by 400? After adding your Graphic JPanel and rendering your GUI (calling pack() or setVisible(true) on the top-level container), you may wish to call System.out.println(g.getSize()) to see how big the panel is.

the panel is y: 640 x :1200 =/

Quote:

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Originally Posted by santa

the panel is y: 640 x :1200 =/

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That's its position. We need to know its dimensions. Its height and width.

Note that if this doesn't solve the problem, then you're going to have to post more code.

no not position ... cordinatepanel.setSize(1200, 640);

My problem is ... i wrote this GPS application ... and now i want to draw my pos on a image witch is an imageicon ... just want to paint a circle at the cordinate where the GPS pos is ...

Quote:

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Originally Posted by santa

My problem is ... i wrote this GPS application ... and now i want to draw my pos on a image witch is an imageicon ... just want to paint a circle at the cordinate where the GPS pos is ...

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I'll state again what I've stated before:

Quote:

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Originally Posted by fubarable

Note that if this doesn't solve the problem, then you're going to have to post more code.

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Yes .. I know you said that =/ but I dont whanna get fail on the task because of the teachers search bot finding a match on Java forum =/ can i mail it to you or someting ... would be awsome =)