ios - Error: "array index out of range" in multidimensional array

Question

i have declared my array like

var tile = [[Int]]()

and after that i have initialize its value like

for (var index = 0; index < 4; index++)
    {
        for (var sindex = 0; sindex < 4; sindex++)
        {
        self.tile[index][sindex] = 0 // error here
            println("(index) (sindex)")

        }
    }

At run time it is giving an error "array index out of range"

Answer 1

As per comments you know that you are asking for value at index in an empty array. If you want to initialise the array you should try something like this:

for (var index = 0; index < 4; index++)
{
    tile.append([])
    for (var sindex = 0; sindex < 4; sindex++)
    {
        tile[index].append(sindex)

        print("(index) (sindex)")

    }
}