How to change LocalDate format resulting into a LocalDate without resulting into a String [duplicate]

问题

This question already has answers here:

How to format LocalDate object to MM/dd/yyyy and have format persist (5 answers)

How can you make LocalDate to return Date in a specific format? (1 answer)

Closed 9 months ago.

In a need to convert Java LocalDate of the format of dd-MM-yyyy into a LocalDate of dd/MM/yyyy.

Trying with :

DateTimeFormatter dateFormat = DateTimeFormatter.ofPattern("dd/MM/yyyy");
LocalDate date = // LocalDate value in dd-MM-yyyy format
String stringDate = dateFormat.format(date);
LocalDate convertedDate = LocalDate.parse(stringDate, dateFormat);

But still it resulting into return a date in dd-MM-yyyy format. Any efficient way to do this?

回答1:

The default toString implementation in LocalDate.java seems to be hardwired with '-' as a separator. So all default print statements will result into same format. Seems only way out would be to use a formatter and get a string output.

return buf.append(monthValue < 10 ? "-0" : "-")
            .append(monthValue)
            .append(dayValue < 10 ? "-0" : "-")
            .append(dayValue)
            .toString();

Also, purpose of LocalDate.parse(..) is not to convert the date format. It's actually meant to just get a date value in String and give a resulting LocalDate instance.

Hope this helps.

来源：https://stackoverflow.com/questions/61339860/how-to-change-localdate-format-resulting-into-a-localdate-without-resulting-into