String newFormat =  getData(dateTime);

private String getData(LocalDateTime dateTime) {

        String result = "";
//“dd/MM/yyyy HH:mm”.
        result += dateTime.getDayOfMonth() + "/";
        result += dateTime.getMonthValue() + "/";
        result += dateTime.getYear() + " ";
        result += dateTime.getHour() + ":";
        result += dateTime.getMinute() + "";



        return result;
    }