public class Renqi {
public static int year = Integer.MIN_VALUE;
public static int month = Integer.MIN_VALUE;
private static int[] dayOfmonth = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
public static void main(String[] args) {
PrintCalt();
}
public static void PrintCalt() {
InputYearANDMonth();
int sum = getsumDayOfYear();
sum += getSumDayMonth();
System.out.println(sum % 7);
sum++;
PrintMonth();
PrintDay(sum % 7);
}
private static void PrintDay(int daywenkt) {
int cont = daywenkt -1;
if(daywenkt == 0) {
cont = 6;
}
else {
cont = daywenkt -1;
}
for(int i = 0 ; i < cont; i++) {
System.out.print("\t");
}
for(int i = 0 ; i < dayOfmonth[month -1];i++) {
System.out.print(i + 1);
if((daywenkt + i) % 7 ==0) {
System.out.println();
}
else {
System.out.print("\t");
}
}
if(isYear(year) && month == 2) {
System.out.println(29);
}
}
private static void PrintMonth() {
String[] monthName = {"一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"};
System.out.println(year + "\t" + monthName[month -1]);
String[] weeksday = {"星期一","星期二 "," 星期三 "," 星期四 "," 星期五"," 星期六"," 星期天"};
for (int i = 0; i < weeksday.length; i++) {
System.out.print(weeksday[i]+"\t");
}
System.out.println();
}
public static void InputYearANDMonth() {
Scanner input = new Scanner(System.in);
System.out.println("请输入年份:");
year = input.nextInt();
System.out.println("请输入月份:");
month = input.nextInt();
input.close();
input = null;
}
private static int getsumDayOfYear() {
if(year <= Integer.MIN_VALUE) {
System.out.println("年份错误!请重新输入年份和月份!");
InputYearANDMonth();
}
int sum = 0;
for (int i = 1900; i < year; i++) {
sum += 365;
if(isYear(i)) {
sum++;
}
}
return sum;
}
private static boolean isYear(int year) {
return year % 400 ==0 || year % 4 == 0 && year % 100 != 0;
}
private static int getSumDayMonth() {
int sum = 0;
for(int i = 0 ; i < month - 1; i++) {
sum += dayOfmonth[i];
}
if(isYear(year) && month >= 3) {
sum++;
}
return sum;
}
}
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