Defining a two dimensional array

Question

What is wrong with this definition? I want to declare a two dimensional array with those numbers:

int[][] arr = [[1,2,3],[1,2,3],[1,2,3]];

I get this error:

Type mismatch: cannot convert from int to int[]

Maroun · Accepted Answer · 2014-03-09 10:45:06Z

7

Should be:

int[][] arr = {{1,2,3},{1,2,3},{1,2,3}};

More information is available on JLS, see 10.6. Array Initializers:

An array initializer is written as a comma-separated list of expressions, enclosed by braces { and }.

You might also want to have a look at a basic tutorial, it'll help you a lot.

answered Mar 9, 2014 at 10:45

Maroun

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Comments

Maroun · Accepted Answer · 2014-03-09 10:49:50Z

3

You should use { and }, instead of [ and ] to initialize the array.

Maroun

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answered Mar 9, 2014 at 10:47

Mestica

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3751_Creator · Accepted Answer · 2014-03-09 10:52:20Z

3

It should be like so:

int[][] arr = {{1,2,3},{1,2,3},{1,2,3}};

Yout need to use curly brakets ({ }).

answered Mar 9, 2014 at 10:47

3751_Creator

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