import java.awt.*;
import java.applet.Applet;

// Figures displays circles and squares and calculates their areas.
public class Figures extends Applet
{
    private Circle redCircle, blueCircle;
    private Square greenSquare, orangeSquare;

    public void init ()
    {
        redCircle = new Circle (Color.red, 100, 100);
        blueCircle = new Circle (Color.blue, 200, 100);
        greenSquare = new Square (Color.green, 100, 200);
        orangeSquare = new Square (Color.orange, 200, 200);
    } // method init

    public void paint (Graphics g)
    {
        redCircle.drawCircle (g);
        blueCircle.drawCircle (g);
        blueCircle.drawAreaString (g);

        greenSquare.drawSquare (g);
        orangeSquare.drawSquare (g);
        orangeSquare.drawAreaString (g);
    } // method paint
} // class Figures

class Circle
{
    private Color color;
    private int x, y, diameter;

    Circle (Color c, int xPosition, int yPosition)
    {
        color = c;
        x = xPosition;
        y = yPosition;
        diameter = 50;
    } // constructor

    public void drawCircle (Graphics g)
    {
        g.setColor (color);
        g.fillOval (x, y, diameter, diameter);
    } // method drawCircle

    private int calculateArea ()
    {
        int area, radius = diameter / 2;
        area = (int)(Math.PI * radius * radius);
        return area;
    } // method calculateArea

    public void drawAreaString (Graphics g)
    {
        g.setColor (Color.black);
        int area = calculateArea ();
        g.drawString ("Area of Circle: "+ area, 100, 75);
    } // method drawAreaString
} // class Circle

class Square
{
    private Color color;
    private int x, y, side;

    Square (Color c, int xPosition, int yPosition)
    {
        color = c;
        x = xPosition;
        y = yPosition;
        side = 50;
    } // constructor

    public void drawSquare (Graphics g)
    {
        g.setColor (color);
        g.fillRect (x, y, side, side);
    } // method drawSquare

    private int calculateArea ()
    {
        int area;
        area = side * side;
        return area;
    } // method calculateArea

    public void drawAreaString (Graphics g)
    {
        g.setColor (Color.black);
        int area = calculateArea ();
        g.drawString ("Area of Square: "+area, 100, 275);
    } // method drawAreaString
}// class Square