Example 1 has [2][3], while here, it is [2][]...[2] implies
that you want to store two references. In other of words, the length of your array
(which is of type array of ints) is 2.
New Text:
Example 1 has [2][3], while here, it is [3][]...[3] implies
that you want to store three references. In other of words, the length of your array
(which is of type array of ints) is 3.