Scala 2 dimensional Array and Arrays

Question

I am trying to write my Java ode from in Scala and I think I need some help. my problem:

Java:

public static int[][] ScoreMatrix = new int[5][20];

Scala:

var ScoreMatrix: Array[Array[Int]] = new Array[Array[Int]](5, 20)

It's not working, don't know why?

Error "too many arguments for constructor Array(_length:int)Array[Array[Int]]"

Ah, sorry. Probably this will help: http://stackoverflow.com/questions/2381908 — Gábor Bakos, Jun 07 '14 at 11:51

some some · Accepted Answer · 2017-02-19T15:53:56.927

3

For initializing 5*20 2D int array you can use:

var ScoreMatrix: Array[Array[Int]] = Array.ofDim[Int](5, 20)

Your code doesn't work because the Array constructor has only one argument, which is the array length.

edited Feb 19 '17 at 15:53

answered Jun 07 '14 at 12:09

some some

some thing like that : var ScoreMatrix: Array[Array[Int]] = new Array.ofDim[Int](5, 20) – user3706354 Jun 07 '14 at 12:12
Yes but without the "new" since the brackets already call the apply method. – some some Jun 07 '14 at 12:14

score 0 · Answer 2 · answered Jun 07 '14 at 17:39

0

Consider also

Array.tabulate(5,20)( (x,y) => 1)

which instantiates a 5 by 20 array with Int: 1 (in general a function of x and y).

answered Jun 07 '14 at 17:39

elm

2 Answers2