Java Screep Capturing Program

import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.ImageIO;

public class screen2image
{
public static void main(String[] args) throws Exception
{
Robot robot = new Robot();

BufferedImage screenShot = robot.createScreenCapture(new Rectangle(Toolkit.getDefaultToolkit().getScreenSize()));
ImageIO.write(screenShot, "BMP", new File("screenShot.bmp"));
}
}