import java.applet.Applet;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JOptionPane;


/**
   An applet that draws a checkerboard of two colors --
   one chosen by the user and one that is the complement
   of the first color.
*/


public class CheckerboardApplet extends Applet
{

  private Checkerboard board;
  
  public CheckerboardApplet()
  {
  
  
  String input;

      // ask the user for the size & location of the board

      input = JOptionPane.showInputDialog(
        "What is the size of the checkerboard?");
      int size = Integer.parseInt(input);

      input = JOptionPane.showInputDialog(
        "Where is the top of the checkerboard?");
      int top = Integer.parseInt(input);

      input = JOptionPane.showInputDialog(
        "Where is the left side of the checkerboard?");
      int left = Integer.parseInt(input);


      // construct a checkerboard and draw it

      board = new Checkerboard(top, left, size);
  }


   public void paint(Graphics g)
   {
      // recover Graphics2D

      Graphics2D g2 = (Graphics2D)g;


       board.draw(g2);

   }
}