Regular expressions in Java, Part 2: The Regex API

The first half of this tutorial introduced you to regular expressions and the Regex API. You learned about the Pattern class, then worked through examples demonstrating regex constructs, from basic pattern matching with literal strings to more complex matches using ranges, boundary matchers, and quantifiers.

In Part 2 we’ll pick up where we left off, exploring methods associated with the Pattern, Matcher, and PatternSyntaxException classes. You’ll also be introduced to two tools that use regular expressions to simplify common coding tasks. The first extracts comments from code for documentation purposes. The second is a reusable library for performing lexical analysis, which is an essential component of assemblers, compilers, and similar software.

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