Draw series of concentric circles

[rciri serve]

I'm really stuck on how to go about programming this. Need to draw a series of 8 concentric circles using Java drawArc method with following conditions

using import java.util.Random library

Provide for starting the drawings at random location (i.e., the x-y cooridinate must be calculated randomly).
Provide a random color for each circle
Provide a random diameter for each circle
My current code is able to get random random color for each circle but not clear how to meet other random conditions

// This program draws concentric circles
import java.awt.Graphics;
import javax.swing.JPanel;

public class ConcentricCircles extends JPanel 
{
  // draw eight Circles separated by 10 pixels
   public void paintComponent( Graphics g )
   {
      Random random = new Random();
      super.paintComponent( g );

      // create 8 concentric circles
      for ( int topLeft = 0; topLeft < 80; topLeft += 10 )
      {
         int radius = 160 - ( topLeft * 2 );
         int r = random.nextInt(255);
         int gr = random.nextInt(255);
         int b = random.nextInt(255);
         Color c = new Color(r,gr,b);
         g.setColor(c);
         g.drawArc( topLeft + 10, topLeft + 25, radius, radius, 0, 360 );
      } // end for
   }  
}

// This program draws concentric circles
import javax.swing.JFrame;

public class ConcentricCirclesTest extends JFrame {
    /**
    * @param args
    */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        JFrame frame=new JFrame("Concentric Circles");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        ConcentricCircles cCirclesJPanel = new ConcentricCircles();
        frame.add(cCirclesJPanel);
        frame.setSize(200,250);
        frame.setVisible(true);


    }//end main
}

[m Korbel]

- the same answer as comment with linked code example to use drawOval,

- override getPreferredSize in ConcentricCircles

- all coordinates for paintComponent, Random, etc are from getHeight/Weight

- Graphics could be resizable (or not) with container (ConcentricCircles)

[rciri serve]

m Korbel wrote:- the same answer as comment with linked code example to use drawOval,

- override getPreferredSize in ConcentricCircles

- all coordinates for paintComponent, Random, etc are from getHeight/Weight

- Graphics could be resizable (or not) with container (ConcentricCircles)

Sorry - Could you give an example ?. I have a requirement to use drawArc method only.

[m Korbel]

Could you give an example ?. I have a requirement to use drawArc method only.

I think linked code by @trashgod "caused" all my a.m. points

[m Korbel]

I think that answered