How to determine day of week by passing specific date

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 I have the date: "10/3/2010" (10th March 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?

Oct 30, 2018 in Java by Sushmita
• 6,920 points
4,170 views

1 answer to this question.

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  • You can use java.util.Calendar:

    Calendar c = Calendar.getInstance();
    c.setTime(yourDate);
    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.

answered Oct 30, 2018 by Daisy
• 8,140 points

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