[Regex] Pattern and Matcher in Java

Regex: Pattern and Matcher in Java /* Predefined character classes . Any character (may or may not match line terminators) \d A digit: [0-9] \D A non-digit: [^0-9] \s A whitespace character: [ \t\n\x0B\f\r] \S A non-whitespace character: [^\s] \w A word character: [a-zA-Z_0-9] \W A non-word character: [^\w] Greedy quantifiers X? X, once or not at all X* X, zero or more times X+ X, one or more ti..

2022.01.21