import java.time.{DayOfWeek, LocalDate}
import java.time.format.DateTimeFormatter
object LastFridaysOfYearProgram {
// Return all last Fridays of each month in a given year
def lastFridaysOfYear(year: Int): Seq[LocalDate] = {
for (month <- 1 to 12) yield {
// Last day of the month
var date =
LocalDate.of(year, month, 1)
.plusMonths(1)
.minusDays(1)
// Walk backward to Friday
while (date.getDayOfWeek != DayOfWeek.FRIDAY) {
date = date.minusDays(1)
}
date
}
}
def main(args: Array[String]): Unit = {
val year: Int =
if (args.nonEmpty) args(0).toInt
else 2026
val fmt = DateTimeFormatter.ofPattern("MM/dd/yyyy")
for (date <- lastFridaysOfYear(year)) {
println(date.format(fmt))
}
}
}
/*
run:
01/30/2026
02/27/2026
03/27/2026
04/24/2026
05/29/2026
06/26/2026
07/31/2026
08/28/2026
09/25/2026
10/30/2026
11/27/2026
12/25/2026
*/
