Frame f = new Frame(); f.setBounds(10, 10, 100,100); f.show();
class CircleWindow extends Frame {
CircleWindow() {
show();
setBounds(10,10, 100, 100);
}
public void paint(Graphics g){
g.setColor(Color.black);
g.drawArc(5,5,90,90,0,360);
}
}