How to get the progress and speed of download from Java?

I found a example to download an http file from java

public class DescargaHttp {

    private static final int BUFFER_SIZE = 4096;

    public static void descargarArchivo(String URLArchivo, String Directorio)
            throws IOException {
        URL url = new URL(URLArchivo);
        HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
        int responseCode = httpConn.getResponseCode();

        if (responseCode == HttpURLConnection.HTTP_OK) {
            String fileName = "";
            String disposition = httpConn.getHeaderField("Content-Disposition");


            if (disposition != null) {

                int index = disposition.indexOf("NombreArchivo=");
                if (index > 0) {
                    fileName = disposition.substring(index + 10,
                            disposition.length() - 1);
                }
            } else {
                // extracts file name from URL
                fileName = URLArchivo.substring(URLArchivo.lastIndexOf("/") + 1,
                        URLArchivo.length());
            }

            InputStream inputStream = httpConn.getInputStream();
            String saveFilePath = Directorio + File.separator + fileName;

            FileOutputStream outputStream = new FileOutputStream(saveFilePath);

            int bytesRead = -1;
            byte[] buffer = new byte[BUFFER_SIZE];
            while ((bytesRead = inputStream.read(buffer)) != -1) {
                outputStream.write(buffer, 0, bytesRead);



            }

            outputStream.close();
            inputStream.close();

            System.out.println("Archivo Descargado");
        } else {
            System.out.println("No se encuentra el archivo. Codigo Servidor HTTP: " + responseCode);
        }
        httpConn.disconnect();
    }
}

There is some way to get the speed and size downloaded (example 12.5 MB of 120 MB)

Try printing the

System.out.println(bytesRead);
System.out.println(inputStream);

However, I had never worked with the java downloads and I have no idea how I can obtain that data, I thought I would read the file size with Files.size(new File(filename).toPath()) but I do not know if it is the best.