import java.awt.*;

class Circle
{
   // make the variables protected, so they can be accessed
   // directly only by subclasses
   protected int radius;
   protected int xCoordinate;
   protected int yCoordinate;

   public Circle()
   {
      radius = 10;
      xCoordinate = 15;
      yCoordinate = 15;
   } //constructor

   public Circle(int r, int x, int y)
   {
      radius = r;
      xCoordinate = x;
      yCoordinate = y;
   } //constructor

   public void draw(Graphics g)
   {
      g.drawOval(xCoordinate - radius, yCoordinate - radius,
                 2 * radius, 2 * radius);
   } // draw

   public int getRadius()
   {
      return radius;
   } // getRadius

   public int getXCoordinate()
   {
      return xCoordinate;
   } // getXCoordinate

   public int getYCoordinate()
   {
      return yCoordinate;
   } // getYCoordinate

   public double getCircumference()
   {
      return Math.PI * 2 * radius;
   } // getCircumference

   public double getDiameter()
   {
      return 2 * radius;
   } // getDiameter

   public double getArea()
   {
      return radius * radius * Math.PI;
   } // getArea

} //Circle

class ColoredCircle extends Circle
{
   protected Color theColor;

   public ColoredCircle()
   {
      super();
      theColor = Color.red;
   } //constructor

   public ColoredCircle(int r, int x, int y)
   {
      super(r, x, y);
      theColor = new Color((int)(Math.random() * 156) + 100,
                 (int)(Math.random() * 156) + 100,
                 (int)(Math.random() * 156) + 100);
   } // constructor

   public ColoredCircle(int r, int x, int y, Color c)
   {
      super(r, x, y);
      theColor = c;
   } // constructor

   public void draw(Graphics g)
   {
      // save the color the user was using, so we can set it back
      Color oldColor = g.getColor();

      g.setColor(theColor);
      g.fillOval(xCoordinate - radius, yCoordinate - radius,
                 2 * radius, 2 * radius);
      g.setColor(oldColor);
   } // draw

   public Color getColor()
   {
      return theColor;
   } // getColor
} // ColoredCircle