在Java中将列表中的元素分组到没有重复的子列表中

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

List<String> list = List.of("apple", "banana", "apple", "orange", "banana", "grape");

Map<String, List<String>> groupedMap = list.stream()
        .collect(Collectors.groupingBy(e -> e));

groupedMap.forEach((key, value) -> System.out.println(key + ": " + value));

apple: [apple, apple]
banana: [banana, banana]
orange: [orange]
grape: [grape]