日历代码

package mm;
import java.util.Scanner;
public class 日历{
public static void main(String[]args){
Scanner n=new Scanner(System.in);
int sum=0;
System.out.println("请输入年份:");
int year=n.nextInt
();
System.out.println("请输入月份:");
int month=n.nextInt();
for(int i=1900;i<year;i++){
if(i%4==0&&i%100!=0||i%400==0){
sum+=366;
}
else{
sum+=365;
}
}
for(int i=1;i<month;i++){
if(i==2){
if(year%4==0&&year%100!=0||year%400==0){
sum+=29;
}else{
sum+=28;
}
}
else{
if(i==4||i==6||i==9||month==11){
sum+=30;
}
else{
sum+=31;
}    
}
}
int days=0;
if(month==2){
if(year%4==0&&year%100!=0||year%400==0){
days=29;
}else{
days=28;
}
}else if(month==4||month==6||month==9||month==11){
days=30;
}else{
days=31;
}
int weekday=sum%7;
System.out.println("日\t一\t二\t三\t四\t五\t六");
for(int i=1;i<=weekday;i++){
System.out.print("\t");
}
for(int i=1;i<=days;i++){
if(sum%7==6){
System.out.print(i+"\n");
}else{
System.out.print(i+"\t");
}
sum+=1;
}

}

}

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转载自blog.csdn.net/weixin_44584479/article/details/90369145