please note that the array (list) is an array of the objects derived from the class.
Each cell has its individual properties.
It is a grid on the screen but internally just a list.
There are also 2D arrays which can be seen as a grid data structure. See textual tutorials: Two dimensional arrays. (2D means grid here)
You can also read the text tutorial about array (1D = list)´and objects (class and objects)