Skip to content

Instantly share code, notes, and snippets.

@mcupak

mcupak/collect-with-grouping-by-flat-mapping-to-set.out

Created November 10, 2017 01:39
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save mcupak/86e52f089470beb85ad6a03c9939e4de to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save mcupak/86e52f089470beb85ad6a03c9939e4de to your computer and use it in GitHub Desktop.
Download ZIP
Raw
collect-with-grouping-by-flat-mapping-to-set.out
jshell> entries.collect(Collectors.groupingBy(e -> e.getKey(), Collectors.flatMapping(e -> e.getValue().stream(), Collectors.toSet())))
$2 ==> {1=[a, b, c], 2=[d]}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment