Java Regex Tutorial
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- Java Regex - Discussion
- Java Regex - Useful Resources
- Java Regex - Quick Guide
- Java Regex - Logical Operators
- Java Regex - Possessive quantifiers
- Java Regex - Reluctant quantifiers
- Java Regex - Greedy quantifiers
- Java Regex - Boundary Matchers
- Unicode Character Classes
- Java Regex - JAVA Character Classes
- POSIX Character Classes
- Predefined Character Classes
- Java Regex - Character Classes
- Java Regex - Characters
- PatternSyntaxException Class
- Java Regex - Matcher Class
- Java Regex - Pattern Class
- Java Regex - MatchResult Interface
- Java Regex - Capturing Groups
- Java Regex - Overview
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Predefined Character Classes
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 pne terminators). |
| 2 |
A digit: [0-9]. |
| 3 |
A non-digit: [^0-9]. |
| 4 |
A whitespace character: [ x0Bf ] |
| 5 |
A non-whitespace character: [^s]. |
| 6 |
A word character: [a-zA-Z_0-9]. |
| 7 |
A non-word character: [^w] |