public static void main(String[] args) throws Exception {

        String st = readAllBytesJava7(
                "C:\\Users\\Sergey\\Google Drive\\Магистратура\\Мартемьянов\\WpfApp\\WpfApp\\Files\\BVx400.mbv");
    }

    private static String readAllBytesJava7(String filePath) {
        String content = "";
        try {
            byte[] b = Files.readAllBytes(Paths.get(filePath));
            List<Integer> arr = new ArrayList<Integer>();
            for (int i = 0; i < b.length; i++) {
                arr.add(b[i] < 0 ? b[i] + 256 : b[i]);
            }

            int width = arr.get(1) << 8 | arr.get(0);
            int height = arr.get(2) | arr.get(3) << 8;
            // int height = arr[2 | arr[3] << 8;
            content = new String(b);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return content;
    }