import java.awt.Graphics;

class Ball
{
  double 	x = 0., 	y = 0.;
  double	radius;

  int			intDiameter;		// repeatedly used by the paint() method

  Ball( double r ) {
    radius 			= r;
    intDiameter = 2 * (int) radius;
  }


  public void paint(Graphics g)
  {
    g.drawOval( (int)x, (int)y, intDiameter, intDiameter );
  }
}