1.传统比较器格式

2.stream

 

 3.结果

4.源码

 List<String> list = Arrays.asList("201305", "200305", "199009", "200208");
        Collections.sort(list, new Comparator<String>() {
            @Override
            public int compare(String o1, String o2) {
                return o2.compareTo(o1);
            }
        });

        List<String> collect1 = list.stream().sorted((e1, e2) -> e2.compareTo(e1)).collect(Collectors.toList());
        System.out.println(collect1);

        List<String> collect2 = list.stream().sorted(Comparator.reverseOrder()).collect(Collectors.toList());