Source:

// Question 3.1
import java.applet.Applet;
import java.awt.Graphics;

public class q31 extends Applet
{
public void paint (Graphics g)
{
int x[] = { 70, 70, 150 };
int y[] = { 70, 150, 150 };

g.drawPolygon (x, y, 3);
}
}