Question

How to create an array of days starting with today and going back the last 30 days in Scala

Answer 1

import java.time.LocalDate

object Last30Days {
  def main(args: Array[String]): Unit = {
    // Get today's date
    val today = LocalDate.now()

    // Create an array to store the days
    val days = Array.ofDim[Int](30)

    // Populate the array with the last 30 days
    for (i <- days.indices) {
      val pastDate = today.minusDays(i) // Subtract 'i' days
      days(i) = pastDate.getDayOfMonth // Extract the day of the month
    }

    println("Days: " + days.mkString("[", ", ", "]"))
  }
}

  
     
/*
run:
  
Days: [11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13]

*/

 

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