Question

How to print matrix in Scala

Answer 1

object PrintMatrix_Scala {
 
  def main(args: Array[String]): Unit = {
    val matrix = Array(
      Array( 1,  2,  3,  4),
      Array( 5,  6,  7,  8),
      Array( 9, 10, 11, 12),
      Array(13, 14, 15, 16)
    )

    matrix.map(_.mkString(" ")).foreach(println)
  }
}
 
 
/*
run:
     
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
     
*/

 

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Answer 2

object PrintMatrix_Scala {
 
  def main(args: Array[String]): Unit = {
    val matrix = Array(
      Array( 1,  2,  3,  4),
      Array( 5,  6,  7,  8),
      Array( 9, 10, 11, 12),
      Array(13, 14, 15, 16)
    )

    print(matrix.map(_.mkString).mkString("\n"))
  }
}
 
 
/*
run:
     
1234 
5678 
9101112 
13141516
     
*/

 

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Answer 3

object PrintMatrix_Scala {
 
  def main(args: Array[String]): Unit = {
    val matrix = Array(
      Array( 1,  2,  3,  4),
      Array( 5,  6,  7,  8),
      Array( 9, 10, 11, 12),
      Array(13, 14, 15, 16)
    )

    print(matrix.map(_.mkString(" ")).mkString("\n"))
  }
}
 
 
/*
run:
     
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
     
*/

 

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