import java.io.*;
/**
* 计算某个月有几天?
* @author Administrator
*
*/
class TestHaveDay {
public static void main(String []args)throws IOException {
System.out.println(days(2012,11));
}
public static int days(int year,int month) {
int days = 0;
if(month != 2) {
switch(month) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:days = 31 ;break;
case 4:
case 6:
case 9:
case 11:days = 30;
}
}else {
if(year%4==0 && year%100!=0 || year%400==0)
days = 29;
else days = 28;
}
return days;
}
}