Basic BitMap Brain Blister

programming flash
1

I am just breaking into bitMap stuff and today (the last 3 hours) is the first day. With the following code im not throwing any errors but i see nothing. can someone point me in the right direction??:worried:

package
{
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.MovieClip;
    public class BMPPrac extends MovieClip
    {
        var bmd:BitmapData = new BitmapData(100, 100);
        var b:Bitmap = new Bitmap(bmd);
        var mc2:Mc2 = new Mc2
        
        
        public function BMPrac():void
        {
            addChild(mc2);
            bmd.draw(new MCpurp);
            mc2.addChild(b);
        }
    }
}