Question

How to fill a large array by repeatedly copying the values from a small array in Scala

Answer 1

object ArrayFill {
  def main(args: Array[String]): Unit = {
    val smallArray = Array(1, 2, 3, 4, 5)
    val largeArray = Array.fill(30)(0)

    val largeLen = largeArray.length
    val smallLen = smallArray.length

    for (i <- 0 until largeLen) {
      largeArray(i) = smallArray(i % smallLen)
    }

    for (i <- 0 until largeLen) {
      print("%d " format(largeArray(i)))
    }
  }
}

   
   
/*
run:

1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 
 
*/

 

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