Solution: Days of the week enum
enum class DayOfWeek(
val isWeekend: Boolean,
val dayName: String,
) {
MONDAY(false, "Monday"),
TUESDAY(false, "Tuesday"),
WEDNESDAY(false, "Wednesday"),
THURSDAY(false, "Thursday"),
FRIDAY(false, "Friday"),
SATURDAY(true, "Saturday"),
SUNDAY(true, "Sunday");
fun nextDay(): DayOfWeek {
val days = DayOfWeek.entries //or DayOfWeek.values()
val currentIndex = days.indexOf(this)
val nextIndex = (currentIndex + 1) % days.size
return days[nextIndex]
}
}
Example solution in playground
enum class DayOfWeek(
val isWeekend: Boolean,
val dayName: String,
) {
MONDAY(false, "Monday"),
TUESDAY(false, "Tuesday"),
WEDNESDAY(false, "Wednesday"),
THURSDAY(false, "Thursday"),
FRIDAY(false, "Friday"),
SATURDAY(true, "Saturday"),
SUNDAY(true, "Sunday");
fun nextDay(): DayOfWeek {
val days = DayOfWeek.entries //or DayOfWeek.values()
val currentIndex = days.indexOf(this)
val nextIndex = (currentIndex + 1) % days.size
return days[nextIndex]
}
}
fun main() {
val friday: DayOfWeek = DayOfWeek.FRIDAY
println(friday.dayName) // Friday
println(friday.isWeekend) // false
val saturday: DayOfWeek = friday.nextDay()
println(saturday.dayName) // Saturday
println(saturday.isWeekend) // true
}
