getQauntdate（）方法说明

Question

can someone explain to me the function of this methode that i found in a script:

public static String getQuantDate(final int quant) {
        final SimpleDateFormat sdf = new SimpleDateFormat("MMdd");
        final int dayOfYear = quant;
        final Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.DAY_OF_YEAR, dayOfYear);
        final Date dat = calendar.getTime();
        return sdf.format(dat);
    }

i need to traslate it to golang but i didn't understand the functionalities to translate it!

Answer 1

Annotated:

   // format string. This returns MMdd
    final SimpleDateFormat sdf = new SimpleDateFormat("MMdd");

    //redundant re-declaration of function parameter
    final int dayOfYear = quant;

    // make a date and set DAY_OF_YEAR to quant
    final Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.DAY_OF_YEAR, dayOfYear);

    // get date and return it in the correct format
    final Date dat = calendar.getTime();
    return sdf.format(dat);

Looks like the funtion takes a number, converts it to a date, and formats it.

1 would yield 0101

13 would give 0113

32 would give 0201

and so forth.

It is not clear though, how this handles leap years and other variables like that. It does not seem like very high quality code, and I'd recommend analyzing your problem, and coming up with a good spec.