Answers for "stream distinct by property"

Java

1

stream distinct by property

public static <T> Predicate<T> distinctByKey(Function<? super T, ?> keyExtractor) {
    Set<Object> seen = ConcurrentHashMap.newKeySet();
    return t -> seen.add(keyExtractor.apply(t));
}

public void distunctPersons () {
	persons.stream().filter(distinctByKey(Person::getName))
}

Posted by: Guest on April-26-2022

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