Thread: creating a dynamic 2d array?

Hi I new here,

I already had a look into the search but, I didn't find that
what I am looking for!

How do I create a 2d array, where size can be changed during
runtime. I don't know the dimensions of the array.

And after creating this, how do I find out the size of this array.
How can I find out the dimension of this array!

Thanks

Marco