import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;

public class DemonDraw{  
   public static void main(String[] args){  
      DrawFrame frame = new DrawFrame();
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.show();
   }
}

/**
   A frame that contains a panel with drawings
*/
class DrawFrame extends JFrame{
   public DrawFrame(){
      setTitle("DrawTest");
      setSize(400, 400);
      DrawPanel panel = new DrawPanel();
      Container contentPane = getContentPane();
      contentPane.add(panel);
   }
}

/**
   A panel that displays rectangles and ellipses. 
*/
class DrawPanel extends JPanel{  
   public void paintComponent(Graphics g){  
      super.paintComponent(g);
      Graphics2D g2 = (Graphics2D)g;

      double leftX = 100;
      double topY = 100;
      double width = 200;
      double height = 150;

      Rectangle2D rect = new Rectangle2D.Double(leftX, topY,
         width, height);
      g2.draw(rect);
      g2.setPaint(Color.blue);
      g2.fill(rect);

      g2.setPaint(Color.black);
      //chapter 7 goes over Fonts also, it's straight forward  
      Font f= new Font("SanSerif", Font.BOLD, 20);
            g2.setFont(f);
      g2.drawString("Go Blue Demons!", 120, 170);
   }
}