import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Scanner;
public class rili {
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;
public static void main(String[] args) throws Exception {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
for (int i = 0; i < n; i++) {
int nian = in.nextInt();
int yue = in.nextInt();
// System.out.println();
System.out
.println("|--------------------------------------------------|");
System.out.println(nian + "-" + yue);
rili hd = new rili(nian);
hd.printMonthOfYear(yue);
System.out
.println("|--------------------------------------------------|");
}
}
public rili(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) {
return;
}
GregorianCalendar now = new GregorianCalendar();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date date = sdf.parse(year + "-" + mon + "-01");
now.setTime(date);
int month = now.get(Calendar.MONTH);
now.set(Calendar.DAY_OF_MONTH, 1);
int week = now.get(Calendar.DAY_OF_WEEK);
System.out.println("Sun\tMon\tTue\tWed\tThu\tFri\tSat");
for (int i = Calendar.SUNDAY; i < week; i++) {
System.out.print("\t");
}
while (now.get(Calendar.MONTH) == month) {
int day = now.get(Calendar.DAY_OF_MONTH);
if (day < 10) {
System.out.print("" + day + "\t");
} else {
System.out.print("" + day + "\t");
}
if (week == Calendar.SATURDAY) {
System.out.println();
}
now.add(Calendar.DAY_OF_MONTH, 1);
week = now.get(Calendar.DAY_OF_WEEK);
}
System.out.println();
}
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];
}
protected void printFebuary() {
if (this.year % 4 == 0) {
printLeapYear();
} else {
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);
}
}
}
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;
}
}
第一行输入一个组数n，表示显示日历的组数。 每一组数据包括年份和月份。
例如当输入2015年2月时，就会多一个换行
public static void main(String[] args) throws Exception {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
for (int i = 0; i < n; i++) {
int nian = in.nextInt();
int yue = in.nextInt();
// System.out.println();
System.out
.println("|--------------------------------------------------|");
System.out.println(nian + "-" + yue);
rili hd = new rili(nian);
hd.printMonthOfYear(yue);
if(i==n-1){//判断是否是最后一个
System.out
.print("|--------------------------------------------------|");
}else{
System.out
.println("|--------------------------------------------------|");
}
}
}
补充一下，是28后下多的那个换行
1
2015 2
|--------------------------------------------------|
2015-2
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
|--------------------------------------------------|