[Kotlin]코틀린 해당 월의 일(day)갯수 계산
1 2 3 4 5 6 7 8 fun getDaysInMonth(month: Int, year: Int): Int { return when (month-1) { Calendar.JANUARY, Calendar.MARCH, Calendar.MAY, Calendar.JULY, Calendar.AUGUST, Calendar.OCTOBER, Calendar.DECEMBER -> 31 Calendar.APRIL, Calendar.JUNE, Calendar.SEPTEMBER, Calendar.NOVEMBER -> 30 Calendar.FEBRUARY -> if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) 29 else 28 // 윤년계산 else -> throw I..
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