Convert a date to another format date using LocalDate

Question

Can I know how can convert one date format to another date format.

public static LocalDate localDateToAnotherLocalDate(String oldPattern, String newPattern, String input) {
    DateTimeFormatter oldFormat = DateTimeFormatter.ofPattern(oldPattern);
    DateTimeFormatter newFormat = DateTimeFormatter.ofPattern(newPattern);
    LocalDate localDate = LocalDate.parse(input, oldFormat);
    String output = localDate.format(newFormat);
    System.out.println();
    return getLocalDate(output, newPattern);
}

public static LocalDate getLocalDate(String date, String datePattern) {
    DateTimeFormatter formatter = DateTimeFormatter.ofPattern(datePattern);
    return LocalDate.parse(date, formatter);

}

@Test
void getLocalDateToAnotherLocalDateTest() {
    LocalDate localDate = DateUtil.localDateToAnotherLocalDate("yyyy-MM-dd", "dd-MM-yyyy", "2022-11-20");
    System.out.println("localDate" + localDate.toString());
    assertEquals("20-11-2022", localDate.toString());
}

@geocodezip I do not want the date in the format of string. I need back as Local date in different format — bharathi, Dec 01 '22 at 05:00
@bharathi The link provided by geocodezip does answer your question. — Arvind Kumar Avinash, Dec 01 '22 at 12:48
@ArvindKumarAvinash what is wrong with the code you provided in the question? At first glance it is a working code that does what you want. What is the problem with it? — Michael Gantman, Dec 01 '22 at 12:56
@ArvindKumarAvinash Oops. Sorry. Bharathi Please look at my previous comment — Michael Gantman, Dec 01 '22 at 14:53
You cannot. You also should not want to. More details in [my answer here](https://stackoverflow.com/a/52485250/5772882). In that answer I am using the old-fashioned `Date` as example, but what I say is just as true of `LocalDate`, which I also state at the end. — Ole V.V., Dec 03 '22 at 08:50

score 1 · Answer 1 · answered Dec 01 '22 at 13:36

1

A LocalDate object can only ever be printed in ISO8601 format (yyyy-MM-dd). In order to print the object in some other format, you need to format it and save the LocalDate as a string.

answered Dec 01 '22 at 13:36

Farha Mansuri

104
5

Convert a date to another format date using LocalDate

1 Answers1