Java Stream.sorted（）给出了错误的结果

Question

我有列表{"100","5","1","300","7"}，当我将stream().sorted()用于此列表时，它会给我以下结果{"1","100","300","5","7"}。看起来它只按第一个数字排序。怎么了？

ArrayList<String> list = new ArrayList<>(Arrays.asList(
            "100","5","1","300","7"
));

list.stream().sorted().forEach(e -> System.out.println(e));

Answer 1

列表值按字典顺​​序排序。您可以转换值

list.stream().sorted((s1, s2)-> new Integer(s1).compareTo(new Integer(s2))).forEach(System.out::println);