int year = 2001;
if((year%4==0 && year%100!=0) || year%400==0){
System.out.println(year+"是閏年");
}else{
System.out.println(year+"不是閏年");
}
int year = 2001;
if((year%4==0 && year%100!=0) || year%400==0){
System.out.println(year+"是閏年");
}else{
System.out.println(year+"不是閏年");
}