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https://issues.apache.org/jira/browse/LANG-1382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16384350#comment-16384350
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Gilles commented on LANG-1382:
------------------------------
bq. JDKRandom
You shouldn't access implementation classes, but instantiate a
{{UnifomRandomProvider}} (client API) through the {{RandomSource.create}}
factory method; see e.g. the
[userguide|http://commons.apache.org/proper/commons-rng/userguide/rng.html#a2._Usage_overview].
And, please note that any of [the other implemented algorithms are better
than
{{JDKRandom}}|http://commons.apache.org/proper/commons-rng/userguide/rng.html#a5._Quality].
bq. there's still functionality missing to create values in between a specified
range.
It is provided by
[DiscreteUniformSampler|http://commons.apache.org/proper/commons-rng/commons-rng-sampling/apidocs/org/apache/commons/rng/sampling/distribution/DiscreteUniformSampler.html].
> Provide method to generate random numbers without range restriction for all
> numeric types
> -----------------------------------------------------------------------------------------
>
> Key: LANG-1382
> URL: https://issues.apache.org/jira/browse/LANG-1382
> Project: Commons Lang
> Issue Type: New Feature
> Reporter: Karl Richter
> Priority: Major
>
> `RandomUtils` only allows to generate random numbers of different numeric
> types (`byte`, `short`, `double`, etc.) within the range 0 (inclusive) and
> the maximum value of the respective type. It'd be nice if there were methods
> to create random numbers for the range between the minimal and the maximal
> value for all numeric types.
> I'm aware of workarounds like
> https://stackoverflow.com/questions/27976857/how-to-get-random-number-with-negative-number-in-range,
> but they're not tested and require quite some thinking which can be avoided
> (which is afaik one of the many motivations for the Apache commons libraries).
> If such methods already exist they should be definitely linked in the Javadoc
> of `RandomUtils`.
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