java - Calendar dont work as expected -


i using calendar api think wrong

    calendar cal = new gregoriancalendar(timezone.getdefault());     cal.add(calendar.year, 2015);     cal.add(calendar.month, 6);     cal.add(calendar.day_of_month, 20);     cal.add(calendar.hour, 19);     cal.add(calendar.minute, 0);      log.d("tag", cal.gettime().tostring());

why value?

d/tag﹕ thu jan 09 13:24:24 cest 4031

by using add, getting calendar instance 2015 years, 6 months, 20 days, , 19 hours later now. instead use constructor:

calendar cal = new gregoriancalendar(2015, 5, 20, 19, 0);

and not call add.

alternatively, can use set instead of add:

cal.set(calendar.year, 2015); cal.set(calendar.month, 5);  // 0-based cal.set(calendar.day_of_month, 20); cal.set(calendar.hour, 19); cal.set(calendar.minute, 0);

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