Pseudo-random numbers generators

Clone this repo:
  1. a25e29d Track changes by Alex Herbert · 9 days ago master
  2. 898a874 RNG-145: ContinuousUniformSampler to detect invalid open intervals. by Alex Herbert · 11 days ago
  3. 2cfea0b RNG-145: Correct ContinuousUniformSampler support of an open bound by Alex Herbert · 11 days ago
  4. 31def23 Shift the bits for the descending sequence. by aherbert · 11 days ago
  5. 81b07fa RNG-145: ContinuousUniformSampler to support an open bound by aherbert · 11 days ago

Apache Commons RNG

Build Status Coverage Status Quality Gate Status Maven Central Javadocs Code Quality: Java

The Apache Commons RNG project provides pure-Java implementation of pseudo-random generators.


More information can be found on the Apache Commons RNG homepage. The Javadoc for each of the modules can be browsed:

Questions related to the usage of Apache Commons RNG should be posted to the user mailing list.

Where can I get the latest release?

You can download source and binaries from our download page.

Alternatively you can pull it from the central Maven repositories, e.g.:



We accept Pull Requests via GitHub. The developer mailing list is the main channel of communication for contributors. There are some guidelines which will make applying PRs easier for us:

  • No tabs! Please use spaces for indentation.
  • Respect the code style.
  • Create minimal diffs - disable on save actions like reformat source code or organize imports. If you feel the source code should be reformatted create a separate PR for this change.
  • Provide JUnit tests for your changes and make sure your changes don't break any existing tests by running mvn clean test.

If you plan to contribute on a regular basis, please consider filing a contributor license agreement. You can learn more about contributing via GitHub in our contribution guidelines.


This code is under the Apache Licence v2.

See the NOTICE.txt file for required notices and attributions.


You like Apache Commons RNG? Then donate back to the ASF to support the development.

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