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Editorial Team
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Asked: 2026-06-15T04:41:35+00:00

How can I get the day_of_month, month and the year into parameters as integers?

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How can I get the day_of_month, month and the year into parameters as integers?

DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
Calendar start_date = Calendar.getInstance();     
System.out.println(dateFormat.format(start_date.getTime()));

int day = start_date.get(Calendar.DAY_OF_MONTH);
int month = start_date.get(Calendar.MONTH);
int year = start_date.get(Calendar.YEAR);

String result = day + "/" + month + "/" + year;

but, the date today is: 01/12/12, while the result is: 01/11/12.

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1 Answer

  1. Editorial Team

    This is expected behaviour. Month goes from 0 to 11. You can check this by issuing:

    System.out.println(Calendar.JANUARY);

    By the way, to convert dates to Strings, you should really use SimpleDateFormat

    new SimpleDateFormat("dd/MM/yyyy").format(start_date.getTime());

    (sidenote, but important: SimpleDateFormat is not thread safe very much not thread safe, so don’t try to optimize by using them as static instances in a multithreaded environment! This is also stated in the API doc: Date formats are not synchronized. It is recommended to create separate format instances for each thread. If multiple threads access a format concurrently, it must be synchronized externally.)

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