博客

import java.util.Scanner;
public class QiuOneyear_dayshu {
    public static void main(String[] args) {//switch求一年中的天数
        Scanner scanner = new Scanner(System.in);
        int year = scanner.nextInt();
        int month = scanner.nextInt();
        int day = scanner.nextInt();
        int n=day;
        int [] array ={31,28,31,30,31,30,31,31,30,31,30,31};//第几个月那就前面的累计相加
        int [] run ={31,29,31,30,31,30,31,31,30,31,30,31};//闰年
        if (month>12||day>31)
        {
            System.out.print("输入有误，程序结束");
            System.exit(0);
        }
        if(year%4==0&&year%100!=0||year%400==0)
        {
            for (int i=0;i<month;i++)
            {
                n=n+run[i];
            }
        }else
        {
            for (int i=0;i<month;i++)
            {
                n=n+array[i];
            }
        }
        System.out.print("这是一年中的第"+n+"天");

    }

}