import java.util.Scanner; /** * ClassName: Exer01 * * @Author 爱扣钉-陈晨 * @Create 2023/11/4 10:19 * @Version 1.0 */ /* 从键盘上输入2023年的“month”和“day”,要求通过程序输出输入的日期为2023年的第几天。 */ public class Exer03 { public static void main(String[] args) { int month = 2; int day = 28; int days = 0; switch (month){ case 12: days += 30; case 11: days += 31; case 10: days += 30; case 9: days += 31; case 8: days += 31; case 7: days += 30; case 6: days += 31; case 5: days += 30; case 4: days += 31; case 3: days += 28; case 2: days += 31; case 1: days+=day; } System.out.println(days); } }