Question

How to declare and initialize a matrix with zeros in Scala

Answer 1

object Main extends App {
  val rows = 3
  val cols = 4
  val matrix = Array.ofDim[Int](rows, cols)

  for (row <- matrix) {
    println(row.mkString(" "))
  }

  println("\n")

  for (i <- 0 until rows) {
    for (j <- 0 until cols) {
      print(s"${matrix(i)(j)} ")
    }
    println()
  }
}




/*
run:
  
0 0 0 0
0 0 0 0
0 0 0 0


0 0 0 0 
0 0 0 0 
0 0 0 0 

*/

 

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