Scala 2 dimensional Array and Arrays [duplicate]

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: stackoverflow.com/questions/2381908 — Gábor Bakos
– Gábor Bakos, Commented Jun 7, 2014 at 11:51

some some · Accepted Answer · 2017-02-19 15:53:56Z

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.

answered Jun 7, 2014 at 12:09

some some

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2 Comments

some thing like that : var ScoreMatrix: Array[Array[Int]] = new Array.ofDim[Int](5, 20)

Yes but without the "new" since the brackets already call the apply method.

elm · Accepted Answer · 2014-06-07 17:39:43Z

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 7, 2014 at 17:39

elm

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