import javax.swing.JFrame;

public class CircleViewer {
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        
        frame.setSize(600, 600);
        frame.setTitle("Circles");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        CircleComponent component = new CircleComponent();
        frame.add(component);
        
        frame.setVisible(true);
    }
}