- Java 9 Regular Expressions
- Anubhava Srivastava
- 73字
- 2021-07-02 18:58:36
Boundary constructs
Boundary constructs allow us to specify where our matches should start or stop by restricting our matches to certain boundaries. We avoid matching unwanted text by adding restrictions to the start and stop positions of the matching text using boundary matchers. Here are all the boundary constructs available in Java regular expressions:
Let's recall from the first chapter that [a-zA-Z0-9_] are called word characters. All other characters are considered non-word characters.
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