Flash / Flex / ActionScript/Graphics/Ellipse

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A simple Ellipse class

   <source lang="java">

package{

 import flash.display.Sprite;
 
 public class Main extends Sprite{
   public function Main(){
       var e:Ellipse = new Ellipse (100, 200);  // draw(  ) invoked here
       e.setWidth(25);   // draw(  ) invoked again here
       e.setHeight(50);  // draw(  ) invoked again here
   }
 }

}

 class Ellipse extends flash.display.Shape {
   private var w:Number;
   private var h:Number;
   public function Ellipse (width:Number, height:Number) {
     w = width;
     h = height;
     draw(  );
   }
   public function setWidth (newWidth:Number):void {
     w = newWidth;
     draw(  );
   }
   public function getWidth (  ):Number {
     return w;
   }
   public function setHeight (newHeight:Number):void {
     h = newHeight;
     draw(  );
   }
   public function getHeight (  ):Number {
     return h;
   }
   private function draw (  ):void {
     graphics.lineStyle(1);
     graphics.beginFill(0xFFFFFF, 1);
     graphics.drawEllipse(0, 0, w, h);
   }
 }
       </source>