java - Split a String based on regex

Question

I have a string that needs to be split based on the occurrence of a ","(comma), but need to ignore any occurrence of it that comes within a pair of parentheses. For example, B2B,(A2C,AMM),(BNC,1NF),(106,A01),AAA,AX3 Should be split into

B2B,
(A2C,AMM),
(BNC,1NF),
(106,A01),
AAA,
AX3

Answer 1

FOR NON NESTED

,(?![^(]*))

FOR NESTED(parenthesis inside parenthesis)

(?<!([^)]*),(?![^(]*))