Arrays

An array is a way to organize a group of items in rows and columns.

You count items in an array by counting each row and each column.

The first row is the top row of the array.

The last column is the rightmost column of the array.

Multiply the number of rows by the number of columns.

To arrange items means to put them in a specific order in rows and columns.

No, all rows in an array must have the same number of items.

A 2D array is an array that has two dimensions: rows and columns.

An example is: Row 1: A, B, C; Row 2: D, E, F.

Arrays help organize data so it is easier to understand and use.