输入年份月份判断是平年还是闰年及这个月有多少天

import java.util.Scanner;public class year {public static void main(String[] args) {System.out.println("请输入年份");Scanner sc = new Scanner(System.in);int s = sc.nextInt();System.out.println("请输入月份");Scanner sc1 = new Scanner(System.in);int v = sc.nextInt();if (s%4==0&&s%100!=0||s%400==0){System.out.println(s+"是闰年");}else {System.out.println(s+"是平年");}if (v ==1||v==3||v ==5||v==7||v ==8||v==10||v ==12){System.out.println(v+"是31天");}else if(v==4||v ==6||v==9||v ==11){System.out.println(v+"是30天");}else if(s%4==0&&s%100!=0&&v==2||s%400==0&&v==2){System.out.println(v+"是29天");}else{System.out.println(v+"是28天");}}}