Java日历模型：输入一个日期，控制台显示

 1 package com.zhen.calendar;
 2
 3 import java.text.DateFormat;
 4 import java.text.SimpleDateFormat;
 5 import java.util.Calendar;
 6 import java.util.Date;
 7 import java.util.GregorianCalendar;
 8 import java.util.Scanner;
 9
10 /*
11  * 输入一个日期，控制台显示
12  * 格式：20140808
13  */
14
15 public class CalendarMain {
16     public static void main(String[] argus)
17     {
18         System.out.println("请输入一个日期(格式：20140808):  ");
19
20         Scanner scanner = new Scanner(System.in);
21         String sTemp = scanner.nextLine();                                    //获取输入字符
22
23         CalendarMain calendar = new CalendarMain();
24         calendar.myCalendar(sTemp);
25
26         scanner.close();                                                    //关闭输入流
27     }
28
29     private void myCalendar(String sTestDate)
30     {
31         DateFormat df = new SimpleDateFormat("yyyyMMdd");                    //检查格式化
32         try{
33             Date date = df.parse(sTestDate);
34             Calendar calendar = new GregorianCalendar();
35             calendar.setTime(date);
36             int iYear = calendar.get(Calendar.YEAR);                        //获取输入的年份
37             int iMonth = calendar.get(Calendar.MONTH);                        //获取输入的月份
38             int iDate = calendar.get(Calendar.DATE);                        //获取输入的日期
39
40             calendar.set(Calendar.DATE, 1);                                    //获取输入月份1号
41             int iFirstDay = calendar.get(Calendar.DAY_OF_WEEK);                //获取输入月份1号是星期几
42             int iMaxDate = calendar.getActualMaximum(Calendar.DATE);        //获取输入月份的最大天数
43
44             /*
45             //获取本地时间
46             calendar.setTime(new Date());
47             int iCurYear = calendar.get(Calendar.YEAR);
48             int iCurMonth = calendar.get(Calendar.MONTH);
49             int iCurDate = -1;
50             if(iCurYear == iYear && iCurMonth == iMonth)
51             {
52                 iCurDate = calendar.get(Calendar.DATE);
53             }
54             */
55
56             System.out.println("-- "+ iYear +"年"+(iMonth+1)+"月"+"\n");        //月份从0开始
57             System.out.println("日\t一\t二\t三\t四\t五\t六");
58
59             int j=iFirstDay;
60             for(int i=1;i<=iMaxDate;i++)
61             {
62                 if(i == 1 && i<iFirstDay)                                    //1号时，判定前面空多少‘\t‘
63                 {
64                     int iTemp = i;
65                     while(iTemp < iFirstDay)
66                     {
67                         System.out.print(‘\t‘);
68                         iTemp++;
69                     }
70                 }
71                 String sDate = i<10 ? "0"+i : i+ "";                        //格式化日期
72                 if(iDate == i)
73                 {
74                     sDate += "**";                                            //当前输入的日期加**
75                 }
76                 System.out.print(sDate +"\t");
77
78                 if(j%7==0)                                                    //换行
79                 {
80                     System.out.println();
81                 }
82                 j++;
83             }
84         }
85         catch(Exception e)
86         {
87
88         }
89
90     }
91
92 }