Turn auto count out of range month to next month

Question

I am having trouble with DateTimeFormat with this kind of Date : 2021-07-32 My formatter auto changed this into 2021-08-01 How do i disable this feature and return an exception?

Answer 1

You can use ResolverStyle, for example

DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("uuuu-MM-dd")
        .withResolverStyle(ResolverStyle.STRICT);

LocalDate date = LocalDate.parse("2021-07-32", dateFormatter);

System.out.println(date);
//Exception: Text '2021-07-32' could not be parsed: Invalid value for DayOfMonth (valid values 1 - 28/31): 32