code
dc.drawCircle(dc.getWidth()/2 , dc.getHeight()/2, dc.getWidth()/2);
dc.drawCircle(dc.getWidth()/2 , dc.getHeight()/2, dc.getHeight()/2);
produces drawing like below
code
dc.drawCircle(dc.getWidth()/2 , dc.getHeight()/2, dc.getWidth()/2);
dc.drawCircle(dc.getWidth()/2 , dc.getHeight()/2, dc.getHeight()/2);
produces drawing like below