Display Triangle using Applets in JAVA

import java.applet.Applet; 
import java.awt.*; 
public class Graph2_Triangle extends Applet
{ 
    int x1[]={20,120,220,20};
    int y1[]={20,120,20,20};
    int n1=4;
    int x2[]={120,220,220,120};
    int y2[]={120,20,220,120};
    int n2=4;
    public void paint(Graphics g)
    { 
        setBackground(Color.green);
        g.drawPolygon(x1,y1,n1);
        g.fillPolygon(x2,y2,n2);
    } 
}