//  Hints for Programming Project 2.19 (page 106).
//********************************************************************

1) You should at least draw 4 balloons
  
2) In the paint method set the background color to white.

3) Draw the strings of color black: 
   Set the color black.
         page.setColor (Color.black);
   call the method drawLine(X1, X2, Y1, Y2)
Example:
      page.drawLine (90, 100, 100, 300);

4)  Draw the balloons:
    Set a different color for every baloon, eg.
      page.setColor (Color.blue);
    Use fillOval(x1, y1, width, height), to draw the baloon shape. Eg., 
      page.fillOval (70, 40, 40, 60);
   
   You should notice three things:
   - The height should be larger than the horizontal width to give the balloon a real shape.
   - The sum of (height + y1) = Y1. In the eg. above, 40 + 60 = 100
     In other words, the height of the balloon is the difference between the y=coordinate of the hihger point of the string and the y-coordinate of the upper-left corner of the rectangle that contains the oval (i.e: second argument of the fill-oval). 
   - all strings have same ending point.
   }
}