How to create and use a multi-dimensional array in Scala?

Question

How do I create an array of multiple dimensions?

For example, I want an integer or double matrix, something like double[][] in Java.

I know for a fact that arrays changed in Scala 2.8 and that the old arrays are deprecated, but are there multiple ways to do it now and if yes, which is best?

question from:https://stackoverflow.com/questions/2381908/how-to-create-and-use-a-multi-dimensional-array-in-scala

Answer 1

Like so:

scala> Array.ofDim[Double](2, 2, 2)
res2: Array[Array[Array[Double]]] = Array(Array(Array(0.0, 0.0), Array(0.0, 0.0)), Array(Array(0.0, 0.0), Array(0.0, 0.0)))

scala> {val (x, y) = (2, 3); Array.tabulate(x, y)( (x, y) => x + y )}
res3: Array[Array[Int]] = Array(Array(0, 1, 2), Array(1, 2, 3))