I need to add all the screenshots of steps performed in One word file using selenium webdriver - selenium

Question

Please help me out.
I want to add all the steps screenshot in one document(word) file using selenium webdriver with java for that particular test case and that file should get stored with a that particular test case name.
public static void main(String[] args) {
try {
XWPFDocument docx = new XWPFDocument();
XWPFRun run = docx.createParagraph().createRun();
FileOutputStream out = new FileOutputStream(System.getProperty("user.dir")+"\\Result\\Screenshot");
for (int counter = 1; counter <= 5; counter++) {
captureScreenShot(docx, run, out);
TimeUnit.SECONDS.sleep(1);
}
docx.write(out);
out.flush();
out.close();
docx.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void captureScreenShot(XWPFDocument docx, XWPFRun run, FileOutputStream out) throws Exception {
String screenshot_name = System.currentTimeMillis() + ".png";
BufferedImage image = new Robot().createScreenCapture(new Rectangle(Toolkit.getDefaultToolkit().getScreenSize()));
File file = new File(System.getProperty("user.dir")+"\\Result\\Screenshot" + screenshot_name);
ImageIO.write(image, "png", file);
InputStream pic = new FileInputStream(System.getProperty("user.dir")+"\\Result\\Screenshot" + screenshot_name);
run.addBreak();
run.addPicture(pic, XWPFDocument.PICTURE_TYPE_PNG, screenshot_name, Units.toEMU(350), Units.toEMU(350));
pic.close();
file.delete();
}