// version 0: create major components, executable

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

/**
  *  The draw application.
  */
public class Draw extends JFrame {
   /**
     * The easel for this application.
     */
   private DrawPanel panel ;

   public Draw() { 
      super("Draw") ; 
      // create menubar
      // create toolbar      
      panel = new DrawPanel() ; 
      panel.setBackground(Color.white) ; 
      // add components to toolbar
      this.setLayout(new BorderLayout()) ; 
      this.getContentPane().add("Center", panel) ; 
      this.setVisible(true) ; 
      this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE) ; // exitExam()
   }
      
   public static void main(String[] args) { 
      Draw draw = new Draw() ; 
      draw.setSize(300,375) ; 
      draw.setLocation(500,500) ; 
      draw.setVisible(true) ; 
   }

}


//////////////////////////////////////////////////
/**
  *  The  drawing panel.
  */
class DrawPanel extends JPanel 
               implements MouseListener,
               MouseMotionListener { 


   public DrawPanel() { 
      this.addMouseListener(this) ; 
      this.addMouseMotionListener(this) ; 
   }

   // MouseListener
   public void mouseClicked(MouseEvent e) {}
   public void mouseEntered(MouseEvent e) {}
   public void mouseExited(MouseEvent e) {}
   public void mousePressed(MouseEvent e) {}
   public void mouseReleased(MouseEvent e) {}

   // MouseMotionListener
   public void mouseMoved(MouseEvent e) {}
   public void mouseDragged(MouseEvent e) {}

}