RFR: 8315968: Move java.util.Digits to jdk.internal.util and refactor to reduce duplication [v19]

[温绍锦]

On Tue, 12 Sep 2023 14:16:27 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> > The title has been updated, please help update the title of JIRA
> 
> The description needs an update too.

The description has also been updated

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PR Comment: https://git.openjdk.org/jdk/pull/15651#issuecomment-1715880514