6.输入年月日，判断这一天是这一年的第几天？

版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。

本文链接： https://blog.csdn.net/Carol_x/article/details/102528564

6.输入年月日，判断这一天是这一年的第几天？

package practice1;

import java.util.Scanner;

public class Year {
	// 2. 输入年月日，判断这一天是这一年的第几天？
	public static void main(String[] args) {
		// 读取数据
		Scanner sc1 = new Scanner(System.in);
		Scanner sc2 = new Scanner(System.in);
		Scanner sc3 = new Scanner(System.in);
		System.out.println("请输入年份");
		int year = sc1.nextInt();
		System.out.println("请输入月份");
		int month = sc2.nextInt();
		System.out.println("请输入天份");
		int day = sc3.nextInt();
		int count = 0;
		// 將月份转换为天数
		switch (month - 1) {
		case 12:
			count += 31;
		case 11:
			count += 30;
		case 10:
			count += 31;
		case 9:
			count += 30;
		case 8:
			count += 31;
		case 7:
			count += 31;
		case 6:
			count += 30;
		case 5:
			count += 31;
		case 4:
			count += 30;
		case 3:
			count += 31;
			// 判断是闰年还是平年
		case 2:
			if (year % 400 == 0 || year % 4 == 0 && year % 100 != 0) {
				count += 29;
			} else
				count += 28;
			;
		case 1:
			count += 31;
		}
		count += day;
		System.out.println(count);
		sc1.close();
		sc2.close();
		sc3.close();

	}
}