Map<Pair<String, Integer>, List<Person>> map = people.collect(Collectors.groupingBy(p -> Pair.of(p.getName(), p.getAge())));. ... <看更多>

Java Stream grouping by multiple fields. GitHub Gist: instantly share code, notes, and snippets. ... <看更多>

groupingBy () provides similar functionality to SQL's GROUP BY clause, only it is for the Java Stream API ... ... <看更多>