How to draw Java2D primitives to a window

[Schwartz, Cynthia L]

I am new to Pivot (28hrs in) and I am wondering how to draw Java2D primitives 
to a window?  I tried something like this

String myString = test String";
Window.getGraphics().drawString(myString, 10, 10);


Eventually I will write a custom component for displaying a waveform and will 
need to drawLines and vertical text. If I wrote a custom component such as this 
should I iextend  Container? Component?  Suggestions?

Thanks for your help,
Cynthia