Consider the following RegularExpression:

====================
q[^u]
====================

One of the RegEx tutorials I have come across says the following
w.r.t. the above RegEx:

====================
The above RegEx does not mean a 'q' not followed by a 'u'; rather it
means a 'q' followed by a character that is not a 'u'.
====================

Now what's the difference between the 2 statements that I have cited
above?

Thanks,

Ron