打印某年某月多少天

package day1;
import java.util.Scanner;
public class Test1{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in); System.out.println(“请输入年份”);
int year = scanner.nextInt(); System.out.println(“请输入月份”);
int month = scanner.nextInt();
if (year % 4 == 0 || year % 400 == 0) { System.out.println(year + “年” + “是闰年366天”); } else if (year % 100 != 0) { System.out.println(year + “年” + “是平年365天”); } switch (month) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
System.out.println(year + “年” + month + “月是31天”);
break;
case 2:

if (year % 4 == 0 || year % 400 == 0) {			System.out.println(year + "年" + month + "月是29天");			} else if (year % 100 != 0) {				
System.out.println(year + "年" + month + "月是28天");			}			
break;		
case 4:		
case 6:		
case 9:		
case 11:			
System.out.println(year + "年" + month + "月是30天");			break;		
default:			
System.out.println("请重新输入"）;

本文地址：https://blog.csdn.net/qq_50966209/article/details/109274349