How can I draw multiple different size circle on the same screen?

Question

Hi,
Can you help on this topic? How will I create many shape (do � need array or something)?
Please help,thank you...

Answer 1

import java.awt.*;
public class DrawingWithParameters {
public static void main(String[] args) {
     DrawingPanel dp = new DrawingPanel();
Container cp = dp.getContentPane();
     cp.add(dp);
dp.setBackground(Color.LIGHT_GRAY);
Graphics g = dp.getGraphics();
drawCar(g, 10, 30);
drawCar(g, 150, 10);
public static void drawCar(Graphics g, int x, int y) {
g.setColor(Color.BLACK);
g.fillRect(x, y, 100, 50);
g.setColor(Color.RED);
g.fillOval(x + 10, y + 40, 20, 20);
g.fillOval(x + 70, y + 40, 20, 20);
g.setColor(Color.CYAN);
g.fillRect(x + 70, y + 10, 30, 20);
Why "DrawingPanel" gives warning?
Warning: DrawingPanel cannot be resolved to a type
I tried many basic codes with DrawingPanel but it doesn't work.I just only want to draw many different size circles.