Java

DateFormatSymbols

DateFormatSymbols:JavaDoc

weekdays, shortWeekdays 의 0번째 인덱스는 비어있다.

import java.text.DateFormatSymbols

arrayOf(Locale.KOREAN, Locale.ENGLISH).forEach {
  val symbols = DateFormatSymbols.getInstance(it)
  println("months       : ${symbols.months.joinToString(", ")}")
  println("shortMonths  : ${symbols.shortMonths.joinToString(", ")}")
  println("weekdays     : ${symbols.weekdays.joinToString(", ")}")
  println("shortWeekdays: ${symbols.shortWeekdays.joinToString(", ")}")
  println("amPmStrings  : ${symbols.amPmStrings.joinToString(", ")}")
  println("amPmStrings  : ${symbols.zoneStrings.joinToString(", ")}")
}

결과

months       : 1월, 2월, 3월, 4월, 5월, 6월, 7월, 8월, 9월, 10월, 11월, 12월
shortMonths  : 1월, 2월, 3월, 4월, 5월, 6월, 7월, 8월, 9월, 10월, 11월, 12월
weekdays     : , 일요일, 월요일, 화요일, 수요일, 목요일, 금요일, 토요일
shortWeekdays: , 일, 월, 화, 수, 목, 금, 토
amPmStrings  : 오전, 오후

months       : January, February, March, April, May, June, July, August, September, October, November, December
shortMonths  : Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
weekdays     : , Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
shortWeekdays: , Sun, Mon, Tue, Wed, Thu, Fri, Sat
amPmStrings  : AM, PM

Joda

Duration 객체를 이용한 기간

• Days: Duration(it.startDate, it.endDate).toStandardDays().days
• Hours: Duration(it.startDate, it.endDate).toStandardHours().hours