检查字符串是否包含特殊字符（句点和问号Java除外）

Question

I'm trying to find a way to use regex and match to see if a string contains a special character with the exception of a period or comma. I'm not very familiar with regex and about to bang my head on a wall. What is the regex to when I call

string.matches("??????");

will return a boolean based on whether string contains a special character other than a period or comma?

Answer 1

You can write:

string.matches("[a-zA-Z.? ]*")

That will evaluate to true if every character in the string is either a lowercase letter az , an uppercase letter AZ , a period, a question mark, or a space. (And to false otherwise, of course.)