Question

How to convert a specific row of a decimal matrix to a string in Scala

Answer 1

object ConvertRowToString {

  def convertRowToString(matrix: Array[Array[Int]], row: Int, cols: Int): String = {
    matrix(row).take(cols).mkString(" ")
  }

  def main(args: Array[String]): Unit = {
    val matrix = Array(
      Array(4, 7, 9, 18, 29, 0),
      Array(1, 9, 18, 99, 4, 3),
      Array(9, 17, 89, 2, 7, 5),
      Array(19, 49, 6, 1, 9, 8),
      Array(29, 4, 7, 9, 18, 6)
    )

    val row = 2
    val str = convertRowToString(matrix, row, COLS)

    println(str)
  }
}



/*
run:

9 17 89 2 7 5

*/

 

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