UT源码105032014119

Posted 2020-09-03 景诺晨曦

 1 import java.text.SimpleDateFormat;
 2 import java.util.Calendar;
 3 import java.util.Scanner;
 4 
 5 public class MyDate {
 6     public static String nextdate(int month, int day, int year) {
 7         if (1 <= month && month <= 12)
 8             if (1 <= day && day <= 31)
 9                 if (1912 <= year && year <= 2050) {
10                     SimpleDateFormat sFormat = new SimpleDateFormat("yyyyMMdd");
11                     sFormat.setLenient(false);
12                     try {
13                         Calendar c = Calendar.getInstance();
14                         c.setTime(sFormat
15                                 .parse("" + year + String.format("%02d", month) + String.format("%02d", day)));
16                         c.add(Calendar.DATE, 1);
17                         return c.get(Calendar.YEAR) + "年" + (c.get(Calendar.MONTH )+1) + "月" + c.get(Calendar.DATE)
18                                 + "日";
19                     } catch (Exception e) {
20                         return "日期不存在";
21                     }
22                 } else
23                     return "年份超出范围";
24             else
25                 return "日期超出范围";
26         else
27             return "月份超出范围";
28     }
29 
30     public static void main(String[] args) {
31         String input = "";
32         Scanner scan = new Scanner(System.in);
33         while (true) {
34             System.out.print("请输入日期[日期格式yyyy MM dd]");
35             input = scan.nextLine();
36             String[] buf = input.split("\\s+");
37             if (input.equals(""))
38                 break;
39             else if (buf.length == 3) {
40                 try {
41                     int month = Integer.valueOf(buf[1]);
42                     int date = Integer.valueOf(buf[2]);
43                     int year = Integer.valueOf(buf[0]);
44                     System.out.println(nextdate(month, date, year));
45                 } catch (Exception e) {
46                     System.out.println("日期格式错误");
47                     continue;
48                 }
49             } else {
50                 System.out.println("日期格式错误");
51                 continue;
52             }
53         }
54         System.out.println("谢谢使用，再见~");
55         scan.close();
56     }
57 }