How to escape a square bracket for Pattern compilation

Question

I have comma separated list of regular expressions:

.{8},[0-9],[^0-9A-Za-z ],[A-Z],[a-z]

I have done a split on the comma. Now I\'m trying

Answer 1

You can use the \Q and \E special characters...anything between \Q and \E is automatically escaped.

\Q[0-9]\E