import java.awt.Color;
import graphics.*;

public class DrawApp {
    
    private static int nCircles = 20;

    // main method
    public static void main(String[] args) {
        
        int cx = 100;
        int cy = 200;
        int r  =  10;
        int d  = r * 2;
        Color c = canvas.randomColor();
        boolean filled = true;
        
        for (int i = 0; i < nCircles; ++i) {
            //canvas.clear();
            
            cx = canvas.randomInt(0, 700);
            cy = canvas.randomInt(0, 700);
            r  = canvas.randomInt(10, 35);
            c  = canvas.randomColor();
                        
            if (canvas.randomInt(1, 2) == 1) {
                canvas.drawCircle(cx, cy, r, c);
            }
            else {
                canvas.fillCircle(cx, cy, r, c);
            }
            
            canvas.sleep(0.2);
            
        }
    }
}