Question

In Java we can do this:

bool[][] something = new bool[5][10];

// Then, we can do this, since indexes do not refer to null instances:
something [3][7] = true;

However, the same does not seem to compile in C#. Is there an equivalent way of doing this in C#?

Answer 1

The syntax is slightly different:

bool[,] something = new bool[5,10];
// Then, we can do this, since indexes do not refer to null instances:
something [3,7] = true;

Or if you are using C# 3.0+, you can slightly simplify the declaration:

//Doesn't work for fields.
var something = new bool[5,10];

That is a multi-dimensional array. You can refer to MSDN for more information.