import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Ellipse2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Overlap extends JPanel {
public static void main(String[] args) {
JFrame f = new JFrame();
f.getContentPane().add(new Overlap());
f.setSize(300, 200);
f.setVisible(true);
}
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
double x = 15, y = 50, w = 70, h = 70;
Ellipse2D e = new Ellipse2D.Double(x, y, w, h);
g2.setStroke(new BasicStroke(8));
Color smokeyColor = new Color(128, 128, 128, 128);
g2.setPaint(smokeyColor);
g2.fill(e);
g2.draw(e);
e.setFrame(x + 100, y, w, h);
g2.setPaint(Color.black);
g2.draw(e);
g2.setPaint(Color.gray);
g2.fill(e);
e.setFrame(x + 200, y, w, h);
g2.setPaint(Color.gray);
g2.fill(e);
g2.setPaint(Color.black);
g2.draw(e);
}
}