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# Array dimension - pl explain

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This is regarding an array
type1:
int[][] i = {{1,2,3,4},{4,5,6},{1,2,3}};

Can I declare like above ? Usually it should be like below right ?
type:2
int[][][] i = {{1,2,3,4},{4,5,6},{1,2,3}};
Note: see an aditional bracket on left

Both are getting compiled.
But in Type 1 left side (Declaration side we have two square brackets) and right side we have 3 set of values. In this case what is the array dimension ? Can anybody explain the difference ? thanks

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Are you sure they both compile?

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int[][][] i = {{{1,2,3,4},{4,5,6},{1,2,3}}};

If this is the array, then length means how many two dimensional arrays are present in this array.
Ans is 1.

int[][] i = {{1,2,3,4},{4,5,6},{1,2,3}};

For this, length means how many one dimensional arrays are present and it is 3.

Greenhorn
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type1:
int[][] i = {{1,2,3,4},{4,5,6},{1,2,3}};

This type is no problem, and will compiled.

int[][][] i = {{1,2,3,4},{4,5,6},{1,2,3}};
Note: see an aditional bracket on

This one will not compiled, they are just incompatible type, the left side require a 3-Dim array, but the right side is just a 2-DIM array.