Java multidimensional array to c#

Question

I need some help converting this multidimensional array from Java to c#:

int[] tileMap = new int[][] {
        {0, 1, 2, 3},
        {3, 2, 1, 0},
        {0, 0, 1, 1},
        {2, 2, 3, 3}
};

I'm working on implementing this Stackoverflow answer on generating isometric worlds in Unity. I know both Java and c#, but I lack the knowledge I need on c# multidimensional array to do the conversion.

I tried my only guess at converting it:

int[,] tileMap = new int[]{
        {0, 1, 2, 3},
        {3, 2, 1, 0},
        {0, 0, 1, 1},
        {2, 2, 3, 3}
};

But I can tell that it's not right, and it throws errors.

Thanks in advance for any help!

Please take a look at this msdn.microsoft.com/en-us/library/2yd9wwz4.aspx — HungPV
– HungPV, Commented Sep 16, 2015 at 2:14

Rob · Accepted Answer · 2015-09-16 02:14:31Z

1

Like this:

int[][] jagged = new int[][] {
    new int[] {0, 1, 2, 3},
    new int[] {3, 2, 1, 0},
    new int[] {0, 0, 1, 1},
    new int[] {2, 2, 3, 3}
};

Edit; the above supports jagged arrays. For non-jagged multidimensional arrays, from HungPV's comment:

var tileMap = new int[,] {
    {0, 1, 2, 3},
    {3, 2, 1, 0},
    {0, 0, 1, 1},
    {2, 2, 3, 3}
};

You use them differently, as well:

var res = jagged[0][1];
vs
var res = tileMap[0,1];

answered Sep 16, 2015 at 2:14

Rob♦

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Comments

Anik Islam Abhi · Accepted Answer · 2015-09-16 02:17:47Z

1

You are missing , in new int[]

Try like this

int[,] tileMap = new int[,]{
        {0, 1, 2, 3},
        {3, 2, 1, 0},
        {0, 0, 1, 1},
        {2, 2, 3, 3}
};

answered Sep 16, 2015 at 2:17

Anik Islam Abhi

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3 Comments

Keith M Over a year ago

That did it :) I found it a few seconds ago from @HungPV's comment. Will accept when it lets me in 6 minutes

Dave Doknjas Over a year ago

A Java jagged array converts to a C# jagged array (as per Rob's answer). Don't know why so many seem to want to convert these to the C#-specific multidimensional array.

Keith M Over a year ago

@DaveDoknjas I found more info, so I marked Rob's answer as correct as I realized the multidimensional array was not right. I hadn't known of jagged arrays before, they seem quite useful :)

Hari Prasad · Accepted Answer · 2015-09-16 02:19:44Z

0

You can initialize this way.

int[,] tileMap = new int[4, 4]{
        {0, 1, 2, 3},
        {3, 2, 1, 0},
        {0, 0, 1, 1},
        {2, 2, 3, 3}
};

Size is not mandatory, you can even use int[,]

answered Sep 16, 2015 at 2:19

Hari Prasad

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