CODEWITHSUNDEEP
scalamultidimensional-array
Wins
Wins

Reputation: 3460

scala 2 dimensional array

This may sound easy, but I just can't get it right.

How to create a 2 dimensional array with size 100 by 60 in Scala? Supposed I have class called Abcd and I want to create a 2 dimensional array of Abcd. I tried with the following code but doesn't work.

var myArray = new Array[Array[Abcd]](100,60)

It complains "too many arguments for constructor Array"

Upvotes: 20

Views: 24317

Answers (3)

Chick
Chick

Reputation: 426

Or if you prefer to have your array start with ABCD's instead of nulls

Array.fill[ABCD](100,6) { new ABCD }

or if the ABCD vary in some regular way by position

Array.tabulate[ABCD](100,6) { (i,j) => new ABCD(i,j) }

Upvotes: 26

Johan S
Johan S

Reputation: 3591

I know this question is answered but one problem I ran into was that @alexwriteshere's solution and @Chick's solution was only good if you wanted a matrix.

To be able to create a two-dimensional array with (if viewed as first number of rows then number of columns), do something like this:

val array = Array.ofDim[Array[Char]](2)
array(0) = Array.ofDim[Char](10)
array(1) = Array.ofDim[Char](20)

Upvotes: 4

Alex Yarmula
Alex Yarmula

Reputation: 10667

The currently recommended way is to use ofDim:

var myArray = Array.ofDim[Abcd](100, 60)

Upvotes: 43

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