Convert string with date of a week-CodePudding

I've got an error when I try to convert this string to date:

String s = "Mon, 11-12-2021 - 12:00";
LocalDateTime localDateTime = LocalDateTime.parse(s, DateTimeFormatter.ofPattern("EEE, MM-dd-yyyy - HH:mm"));

I got this:

  Exception in thread "main" java.time.format.DateTimeParseException: Text 'Mon, 11-12-2021 - 12:00' could not be parsed at index 0

    at java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:1949)
    at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1851)
    at java.time.LocalDateTime.parse(LocalDateTime.java:492)
    at Main.main(Main.java:11)

Is it possible in Java to convert this string or it should be changed in some way?

CodePudding user response：

Perhaps your locale is not English. Then you would need to pass Locale.ENGLISH to your DateTimeFormatter.

This worked for me, together with @Narcis Postolache's date change to Fri.

String s = "Fri, 11-12-2021 - 12:00";
LocalDateTime localDateTime = LocalDateTime.parse(s, DateTimeFormatter.ofPattern("EEE, MM-dd-yyyy - HH:mm", Locale.ENGLISH));

localDateTime object: 2021-11-12T12:00

CodePudding user response：

Try
String s = "Fri, 11-12-2021 - 12:00";

CodePudding user response：

Your defaul locale is not US and 11-12-2021 is not Monday it's Friday:

String s = "Fri, 11-15-2021 - 12:00";
LocalDateTime localDateTime = LocalDateTime.parse(s, 
          DateTimeFormatter.ofPattern("EEE, MM-dd-yyyy - HH:mm", Locale.US));

CodePudding user response：

For the pattern you are requesting it might be a good idea to specify a different predefined formatter according to the official documentation (have a look to see the different options)

String pattern = "Mon, 11 Dec 2021 12:00:00 GMT";
LocalDate formatter = LocalDate.parse(pattern, DateTimeFormatter.RFC_1123_DATE_TIME);

Additionally, if you don't want to convert the month you can do:

LocalDateTime local = LocalDateTime.parse("2021-12-11T12:00:00");

and then get the day of the week with:

System.out.println(local.getDayOfWeek());