用户可以自定义打印某一年的年历，即：把某一年的日历全部打印出来
如把2013年的年历打印出来如下：
复制代码 代码如下:
January 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2 3 4 5
7 8 9 10 11 12
14 15 16 17 18 19
21 22 23 24 25 26
28 29 30 31
Febuary 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2
4 5 6 7 8 9
11 12 13 14 15 16
18 19 20 21 22 23
25 26 27 28
March 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2
4 5 6 7 8 9
11 12 13 14 15 16
18 19 20 21 22 23
25 26 27 28 29 30
April 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2 3 4 5 6
8 9 10 11 12 13
15 16 17 18 19 20
22 23 24 25 26 27
29 30
May 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2 3 4
6 7 8 9 10 11
13 14 15 16 17 18
20 21 22 23 24 25
27 28 29 30 31
Jun 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
3 4 5 6 7 8
10 11 12 13 14 15
17 18 19 20 21 22
24 25 26 27 28 29
July 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2 3 4 5 6
8 9 10 11 12 13
15 16 17 18 19 20
22 23 24 25 26 27
29 30 31
August 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2 3
5 6 7 8 9 10
12 13 14 15 16 17
19 20 21 22 23 24
26 27 28 29 30 31
Septermber 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2 3 4 5 6 7
9 10 11 12 13 14
16 17 18 19 20 21
23 24 25 26 27 28
30
October 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2 3 4 5
7 8 9 10 11 12
14 15 16 17 18 19
21 22 23 24 25 26
28 29 30 31
November 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2
4 5 6 7 8 9
11 12 13 14 15 16
18 19 20 21 22 23
25 26 27 28 29 30
December 2013
---------------------------------------------
Sun Mon Tue Wed Thu Fri Sat
2 3 4 5 6 7
9 10 11 12 13 14
16 17 18 19 20 21
23 24 25 26 27 28
30 31
当然用户如果想单独打印某个月的日历，同样是可以实现的
如打印：2014年1月份的日历
复制代码 代码如下:
日 一 二 三 四 五 六
2 3 4
6 7 8 9 10 11
13 14 15 16 17 18
20 21 22 23 24 25
27 28 29 30 31
用户还可以实现打印当前的月份的日历
今天是：2013-04-27，则当前月份的日历打印如下：
复制代码 代码如下:
日 一 二 三 四 五 六
2 3 4 5 6
8 9 10 11 12 13
15 16 17 18 19 20
22 23 24 25 26 :)27(:
29 30
是的，你没有看错，在27的那里有一个标志，表示是当天的日期.....
下面进入代码部分：
========================================================
代码部分：
========================================================
/UUUUUU_Test/src/com/b510/date/HongtenDate.java
复制代码 代码如下:
package com.b510.date;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
public class HongtenDate {
// MONTHS
// ============================================
public static final String JANUARY = "January";
public static final String FEBUARY = "Febuary";
public static final String MARCH = "March";
public static final String APRIL = "April";
public static final String MAY = "May";
public static final String JUN = "Jun";
public static final String JULY = "July";
public static final String AUGUST = "August";
public static final String SEPTERMBER = "Septermber";
public static final String OCTOBER = "October";
public static final String NOVEMBER = "November";
public static final String DECEMBER = "December";
private int year;
private int whatDayOnJanuaryOne;
// main
// ======================================
public static void main(String[] args) throws Exception {
// 无参数，系统默认去当前年份
HongtenDate date = new HongtenDate();
// date.printCalendar();
date.printCurrentMonth();
// date.printMonthOfYear(4);
// 设置为2014年
HongtenDate hd = new HongtenDate(2014);
// hd.printCurrentMonth();
// hd.printMonthOfYear(1);
}
// 无参数，系统默认去当前年份
public HongtenDate() {
Calendar cal = Calendar.getInstance();
this.year = cal.get(Calendar.YEAR);
try {
setWhatDayonJanuaryOne(getJanuaryOne(year));
} catch (Exception e) {
e.printStackTrace();
}
}
// 有参数，设置年份
public HongtenDate(int year) {
this.year = year;
try {
setWhatDayonJanuaryOne(getJanuaryOne(year));
} catch (Exception e) {
e.printStackTrace();
}
}
public void printMonthOfYear(int mon) throws Exception {
if (mon < 1 || mon > 12) {
System.out.println("你输入的月份[" + mon + "]不对，请检查在进行....");
return;
}
GregorianCalendar now = new GregorianCalendar();
// 获得一个Date对象
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date date = sdf.parse(year + "-" + mon + "-01");
// 设置当前时间
now.setTime(date);
// 从日期中取得当前的月
int month = now.get(Calendar.MONTH);
// 设置now的日期为1
now.set(Calendar.DAY_OF_MONTH, 1);
// 得到now是一周的第几天
int week = now.get(Calendar.DAY_OF_WEEK);
// 打印日历头部标示
System.out.println("日t一t二t三t四t五t六");
// 打印当前日期前面的空格
for (int i = Calendar.SUNDAY; i < week; i++) {
System.out.print("t");
}
// 打印日历主体
while (now.get(Calendar.MONTH) == month) {
int day = now.get(Calendar.DAY_OF_MONTH);
// 对输出的日历进行对齐，小于10的加上一个空格
if (day < 10) {
System.out.print(" " + day + "t");
} else {
System.out.print("" + day + "t");
}
// 如果是周六，进行换行
if (week == Calendar.SATURDAY) {
System.out.println();
}
// 每次输出日期后，将日期增加一天
now.add(Calendar.DAY_OF_MONTH, 1);
// 重新获得一周的第几天
week = now.get(Calendar.DAY_OF_WEEK);
}
}
public void printCurrentMonth() {
GregorianCalendar now = new GregorianCalendar();
// 获得一个Date对象
Date date = new Date();
// 设置当前时间
now.setTime(date);
// 从日期中取得当前的日
int toDay = now.get(Calendar.DAY_OF_MONTH);
// 从日期中取得当前的月
int month = now.get(Calendar.MONTH);
// 设置now的日期为1
now.set(Calendar.DAY_OF_MONTH, 1);
// 得到now是一周的第几天
int week = now.get(Calendar.DAY_OF_WEEK);
// 打印日历头部标示
System.out.println("日t一t二t三t四t五t六");
// 打印当前日期前面的空格
for (int i = Calendar.SUNDAY; i < week; i++) {
System.out.print("t");
}
// 打印日历主体
while (now.get(Calendar.MONTH) == month) {
int day = now.get(Calendar.DAY_OF_MONTH);
// 对输出的日历进行对齐，小于10的加上一个空格
if (day < 10) {
// 如果是当前日期，加上标示
if (day == toDay) {
System.out.print(":)" + day + "(:t");
} else {
System.out.print(" " + day + "t");
}
} else {
// 如果是当前日期，加上标示
if (day == toDay) {
System.out.print(":)" + day + "(:t");
} else {
System.out.print("" + day + "t");
}
}
// 如果是周六，进行换行
if (week == Calendar.SATURDAY) {
System.out.println();
}
// 每次输出日期后，将日期增加一天
now.add(Calendar.DAY_OF_MONTH, 1);
// 重新获得一周的第几天
week = now.get(Calendar.DAY_OF_WEEK);
}
}
public int getJanuaryOne(int year) throws Exception {
int[] weekDays = { 0, 1, 2, 3, 4, 5, 6 };
Calendar cal = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date dt = sdf.parse(year + "-01-01");
cal.setTime(dt);
int w = cal.get(Calendar.DAY_OF_WEEK) - 1;
if (w < 0)
w = 0;
return weekDays[w];
}
public void printCalendar() {
for (int i = 1; i <= 12; i++) {
String month = getMonth(i);
printTitle(month);
// 打印有31天的月份
if (i == 1 || i == 3 || i == 5 || i == 7 || i == 8 || i == 10 || i == 12) {
print31();
}
// 打印有30天的月份
else if (i == 4 || i == 6 || i == 9 || i == 11) {
print30();
}
// 打印二月份
else if (i == 2) {
printFebuary();
}
System.out.println();
}
}
// 打印格式
// ============================================== start
protected void printFebuary() {
if (this.year % 4 == 0) {
// 闰年
printLeapYear();
} else {
// 平年
printNonleapYear();
}
}
private void printLeapYear() {
for (int j = 1; j <= 29; j++) {
String tmp = "";
if (j == 1) {
for (int k = 1; k <= this.whatDayonJanuaryOne % 7; k++) {
tmp = tmp + " ";
}
tmp = tmp + " " + j + " ";
if (this.whatDayonJanuaryOne == 6) {
System.out.println(tmp);
} else {
System.out.print(tmp);
}
} else if (j > 1 && j < 29) {
if ((this.whatDayonJanuaryOne + j) % 7 == 0) {
System.out.println(" " + j);
} else {
if (j < 10) {
System.out.print(" " + j + " ");
} else {
System.out.print(" " + j + " ");
}
}
} else if (j == 29) {
System.out.println(" " + j);
this.whatDayonJanuaryOne = ((this.whatDayonJanuaryOne + j) % 7);
}
}
}
private void printNonleapYear() {
for (int j = 1; j <= 28; j++) {
String tmp = "";
if (j == 1) {
for (int k = 1; k <= this.whatDayonJanuaryOne % 7; k++) {
tmp = tmp + " ";
}
tmp = tmp + " " + j + " ";
if (this.whatDayonJanuaryOne == 6) {
System.out.println(tmp);
} else {
System.out.print(tmp);
}
} else if (j > 1 && j < 28) {
if ((this.whatDayonJanuaryOne + j) % 7 == 0) {
System.out.println(" " + j);
} else {
if (j < 10) {
System.out.print(" " + j + " ");
} else {
System.out.print(" " + j + " ");
}
}
} else if (j == 28) {
System.out.println(" " + j);
this.whatDayonJanuaryOne = ((this.whatDayonJanuaryOne + j) % 7);
}
}
}
protected void print30() {
for (int j = 1; j <= 30; j++) {
String tmp = "";
if (j == 1) {
for (int k = 1; k <= this.whatDayonJanuaryOne % 7; k++) {
tmp = tmp + " ";
}
tmp = tmp + " " + j + " ";
if (this.whatDayonJanuaryOne == 6) {
System.out.println(tmp);
} else {
System.out.print(tmp);
}
} else if (j > 1 && j < 30) {
if ((this.whatDayonJanuaryOne + j) % 7 == 0) {
System.out.println(" " + j);
} else {
if (j < 10) {
System.out.print(" " + j + " ");
} else {
System.out.print(" " + j + " ");
}
}
} else if (j == 30) {
System.out.println(" " + j);
this.whatDayonJanuaryOne = ((this.whatDayonJanuaryOne + j) % 7);
}
}
}
protected void print31() {
for (int j = 1; j <= 31; j++) {
String tmp = "";
if (j == 1) {
for (int k = 1; k <= this.whatDayonJanuaryOne % 7; k++) {
tmp = tmp + " ";
}
tmp = tmp + " " + j + " ";
if (this.whatDayonJanuaryOne == 6) {
System.out.println(tmp);
} else {
System.out.print(tmp);
}
} else if (j > 1 && j < 31) {
if ((this.whatDayonJanuaryOne + j) % 7 == 0) {
System.out.println(" " + j);
} else {
if (j < 10) {
System.out.print(" " + j + " ");
} else {
System.out.print(" " + j + " ");
}
}
} else if (j == 31) {
System.out.println(" " + j);
this.whatDayonJanuaryOne = ((this.whatDayonJanuaryOne + j) % 7);
}
}
}
protected void printTitle(String month) {
System.out.println(" " + month + " " + this.year + " ");
System.out.println("---------------------------------------------");
System.out.println(" Sun Mon Tue Wed Thu Fri Sat");
}
// 打印格式
// ============================================== end
public String getMonth(int m) {
String month = "";
switch (m) {
case 1:
month = JANUARY;
break;
case 2:
month = FEBUARY;
break;
case 3:
month = MARCH;
break;
case 4:
month = APRIL;
break;
case 5:
month = MAY;
break;
case 6:
month = JUN;
break;
case 7:
month = JULY;
break;
case 8:
month = AUGUST;
break;
case 9:
month = SEPTERMBER;
break;
case 10:
month = OCTOBER;
break;
case 11:
month = NOVEMBER;
break;
case 12:
month = DECEMBER;
break;
}
return month;
}
public int getYear() {
return year;
}
public void setYear(int year) {
this.year = year;
}
public int getWhatDayonJanuaryOne() {
return whatDayOnJanuaryOne;
}
public void setWhatDayonJanuaryOne(int whatDayOnJanuaryOne) {
this.whatDayonJanuaryOne = whatDayOnJanuaryOne;
}
}
