SimpleDateFormat 日记格式化

public class demo {
    public static void main(String[] args) throws ParseException {
        Date date = new Date();
//        System.out.println(date);

        //Date --> String
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yy年MM月dd日 HH:mm:ss");
        String format = simpleDateFormat.format(date);
        System.out.println(format);

        //String -->Date
        String s = "22-1-1 00:00:00";
        SimpleDateFormat simpleDateFormat1 = new SimpleDateFormat("yy-MM-dd HH:mm:ss");
        Date newDate = simpleDateFormat1.parse(s);
        System.out.println(newDate);
    }
}