Question

How to convert days into human-readable years, months and days in Scala

Answer 1

import java.time.{LocalDate, Period}

case class YMD(years: Int, months: Int, days: Int)

def splitDays(totalDays: Int): YMD = {
  val start = LocalDate.of(1970, 1, 1)
  val end   = start.plusDays(totalDays.toLong)

  val p = Period.between(start, end)

  YMD(p.getYears, p.getMonths, p.getDays)
}

val r = splitDays(452)

println(s"${r.years} years, ${r.months} months, ${r.days} days")




/*
run:

1 years, 2 months, 28 days

*/

 

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Answer 2

case class YMD(years: Int, months: Int, days: Int)

def splitDays(total: Int): YMD = {
  val years  = total / 365
  val rem1   = total % 365

  val months = rem1 / 30
  val days   = rem1 % 30

  YMD(years, months, days)
}


val r = splitDays(452)

println(s"${r.years} years, ${r.months} months, ${r.days} days")



/*
run:

1 years, 2 months, 27 days

*/

 

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