Screen capture image using Sikuli and Robot

CaptureSikuli.java

import java.awt.image.BufferedImage;
import java.io.File;

import org.sikuli.script.Screen;
import org.sikuli.script.ScreenImage;

import javax.imageio.ImageIO;

public class CaptureSikuli {
    public static void main(String[] args) throws Exception {
        capture("/Users/arwankhoiruddin/Documents/coba.png");
    }

    public static void capture(String imgPath) throws Exception {
        Screen s = new Screen(0);
        ScreenImage img = s.capture();
        BufferedImage image = img.getImage();
        ImageIO.write(image, "png", new File(imgPath));
    }
}