解题思路:
注意事项:
参考代码:
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner=new Scanner(System.in);
int year=scanner.nextInt();
int month=scanner.nextInt();
int date=1;
int days = 0;
int mon=month;
int ye=year;
if(mon==1||mon==2)
{
mon+=12;
ye--;
}
if(month==1||month==3||month==5||month==7||month==8||month==10||month==12)
days=31;
else if(month==4||month==6||month==9||month==11)
days=30;
else if(month==2) {
if((year%4==0&&year%100!=0)||(year%400==0&&year%100==0))
days=29;
else
days=28;
}
System.out.println("---------------------");
System.out.println(" Su Mo Tu We Th Fr Sa");
System.out.println("---------------------");
int week;
int i = 0;
while(date<=days) {
if(date==1) {
week= (date+2*mon+3*(mon+1)/5+ye+ye/4-ye/100+ye/400+1)%7;//基姆拉尔森公式
if(week==0)
System.out.printf(" %2d",date);
else if(week==1)
System.out.printf(" %2d",date);
else if(week==2)
System.out.printf(" %2d",date);
else if(week==3)
System.out.printf(" %2d",date);
else if(week==4)
System.out.printf(" %2d",date);
else if(week==5)
System.out.printf(" %2d",date);
else if(week==6) {
System.out.printf(" %2d",date);
System.out.println();
}
if(week!=6)
i=week+1;
}
else {
if(i!=6) {
System.out.printf(" %2d",date);
i++;
}
else{
System.out.printf(" %2d",date);
System.out.println();
i=0;
}
}
date++;
}
if(i!=0)
System.out.println();
System.out.println("---------------------");
}
}
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