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Source code

import java.time.DayOfWeek
import java.time.LocalDate
import java.time.format.DateTimeFormatter

private val dateFormatter = DateTimeFormatter.ofPattern("uuuu-MM-dd, EEEE")
private val weekend = listOf(DayOfWeek.SATURDAY, DayOfWeek.SUNDAY)


private const val DAY_IN_MONTH = "2022-04-01"


fun main() {
    val randomDayInMonth = LocalDate.parse(DAY_IN_MONTH)
    daysList(randomDayInMonth)
}

fun daysList(randomDayInMonth: LocalDate) {
    val start = randomDayInMonth.withDayOfMonth(1)
    val end = start.plusMonths(1)

    var numberOfWorkedDays = 0

    start.datesUntil(end).forEach {
        if (it.dayOfWeek in weekend) {
            println()
            return@forEach
        }

        val dateFormatted = it.format(dateFormatter).padEnd(21, ' ')

        println("$dateFormatted  8 hours")
        numberOfWorkedDays++
    }

    println(
        """


        Total worked days: $numberOfWorkedDays
        Total worked hours: ${numberOfWorkedDays * 8}
        """.trimIndent()
    )
}