Look at the following applet code:

1 import javax.swing.*;

2 import java.awt.*;

3 public class GraphicsTest extends JApplet

4 {

5 public void init()

6 {

7 getContentPane().setBackground(Color.WHITE);

8 }

9 public void paint(Graphics g)

10 {

11 int[] xCoords = {20, 20, 60, 100, 140, 140, 100, 60};

12 int[] ycoords = {20, 100, 140, 140, 100, 60, 20, 20};

13 super.paint(g);

14 g.setColor(Color.YELLOW);

15 g.fillPolygon(xCoords, yCoords, 8);

16 g.setColor(color.BLACK);

17 g.setFont(new Font("SansSerif", Font.BOLD, 35));

18 g.drawString("SLOW", 35, 95);

19 }

20 }

How many vertices does the polygon have? Explain your answer.