题解 | 明天星期几？

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int day = in.nextInt();
        switch(day){
        case 1:
        System.out.print("2");
        break;
        case 2:
        System.out.print("3");
        break;
        case 3:
        System.out.print("4");
        break;
        case 4:
        System.out.print("5");
        break;
        case 5:
        System.out.print("6");
        break;
        case 6:
        System.out.print("7");
        break;
        case 7:
        System.out.print("1");
        break;
        }
    }
}