有没有办法用 java 8 流更改日期格式？

我想更改日期格式“dd/mm/yyyy" to "yyyy/mm/dd" java8 流中的一行

List<String[]> date = new ArrayList<>();

String[] a= {"12/2/2018","a1","a2"};
String[] b= {"13/3/2018","b1","b2"};
String[] c= {"14/4/2018","c1","c2"};

date.add(a)`
date.add(b);
date.add(c);

我期望输出是

{{"2018/2/12","a1","a2"},{"2018/2/13","b1","b2"},{"2018/2/14","c1","c2"}}

我希望你的意思是yyyy/MM/dd因为 m 代表分钟，M 代表月份...

考虑来自流 API 的 Map

public static void main(String[] args) {
    List<String[]> date = new ArrayList<>();
    String[] a= {"12/2/2018","a1","a2"};
    String[] b= {"13/3/2018","b1","b2"};
    String[] c= {"14/4/2018","c1","c2"};

    date.add(a);
    date.add(b);
    date.add(c);


    List<String[]> even = date.stream().map(
            s -> {
                DateTimeFormatter formatter = DateTimeFormatter.ofPattern("d/M/yyyy");
                LocalDate localDate = LocalDate.parse(s[0], formatter);
                DateTimeFormatter formatterNew = DateTimeFormatter.ofPattern("yyyy/MM/dd");
                return new String[]{formatterNew.format(localDate), s[1],s[2]};
            }
    ).collect(Collectors.toList());
    even.forEach(x-> System.out.println(Arrays.toString(x)));
}

将会打印出

[2018/02/12,a1,a2]

[2018/03/13, b1, b2]

[2018/04/14, c1, c2]