Андрей Владиславов :
sadat :
From year, month, date to Long
val year = 2020
val month = 3
val day = 11
val calendar = Calendar.getInstance()
calendar.set(Calendar.YEAR, year)
calendar.set(Calendar.MONTH, month)
calendar.set(Calendar.DAY_OF_MONTH, day)
val longTYpeVariable = calendar.timeInMillis
From Long to year, month abd day
calendar.timeInMillis = longTYpeVariable
val year1 = calendar.get(Calendar.YEAR)
val month1 = calendar.get(Calendar.MONTH)
val day1 = calendar.get(Calendar.DAY_OF_MONTH)