- Java Regex Tutorial
- Java Regex - Home
- Java Regex - Overview
- Java Regex - Capturing Groups
- Java Regex - MatchResult Interface
- Java Regex - Pattern Class
- Java Regex - Matcher Class
- PatternSyntaxException Class
- Java Regex Examples
- Java Regex - Characters
- Java Regex - Character Classes
- Predefined Character Classes
- POSIX Character Classes
- Java Regex - JAVA Character Classes
- Unicode Character Classes
- Java Regex - Boundary Matchers
- Java Regex - Greedy quantifiers
- Java Regex - Reluctant quantifiers
- Java Regex - Possessive quantifiers
- Java Regex - Logical Operators
- Java Regex Useful Resources
- Java Regex - Quick Guide
- Java Regex - Useful Resources
- Java Regex - Discussion
Matching Predefined Character Classes
Following are various examples of matching predefined character classes using regular expression in java.
Sr.No | Construct & Matches |
---|---|
1 | .
Any character (may or may not match line terminators). |
2 | \d
A digit: [0-9]. |
3 | \D
A non-digit: [^0-9]. |
4 | \s
A whitespace character: [ \t\n\x0B\f\r] |
5 | \S
A non-whitespace character: [^\s]. |
6 | \w
A word character: [a-zA-Z_0-9]. |
7 | \W
A non-word character: [^\w] |
Advertisements
To Continue Learning Please Login
Login with Google