"할일관리 어플" #4 D-day 구하기

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kotlin 코드

class MyCalendar private constructor(){
    var cal = Calendar.getInstance()

    fun getDday(year:Int,month:Int,date:Int):String{
        cal = Calendar.getInstance() //오늘 날짜
        val today = cal.time.time 
        cal.set(year,month,date) //원하는 날짜
        val dday = (cal.time.time - today) / (60*60*24*1000)
        if(dday.compareTo(0) == 0) return "Day" //원하는 날짜 == 오늘 : D-day
        return dday.toString()
    }
}