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in Java by (10.2k points)

For Example I have the date: "23/2/2010" (23th Feb 2010). I want to pass it to a function which would return the day of week. How can I do this?

In this example, the function should return String "Tue".

Additionally, if just the day ordinal is desired, how can that be retrieved?

1 Answer

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by (46k points)

Yes. Depending on your exact case:

  • You can use

 java.util.Calendar:Calendar c = Calendar.getInstance();


int dayOfWeek = c.get(Calendar.DAY_OF_WEEK);

  • if you need the output to be Tue rather than 3 (Days of week are indexed starting at 1), instead of going through a calendar, just reformat the string: new SimpleDateFormat("EE").format(date) (EE meaning "day of week, short version")
  • if you have your input as string, rather than Date, you should use SimpleDateFormat to parse it: new SimpleDateFormat("dd/M/yyyy").parse(dateString)
  • you can use joda-time's DateTime and call dateTime.dayOfWeek() and/or DateTimeFormat.
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