How Can I Create an Array of Strings from Regex Matches in Java?

Creating Arrays from Regex Matches

In Java, regex matches are typically verified as boolean values, indicating whether a pattern matches a string. However, it is possible to extract the matching strings from a regular expression into an array.

To achieve this, you can employ a Matcher:

The above code uses a Pattern to create a Matcher instance, which is then used to iteratively identify matches. Each match is added to a list, and you can convert the list to an array using:

Alternatively, you can create a custom iterator to allow for lazy iteration over matches:

With this iterator, you can iterate over matches without the need to find all possible matches immediately.

As demonstrated in the code snippet:

This will output:

Demonstrating how matches can be iteratively accessed using the MatchResult implementation.

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