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 sc = new Scanner(System.in);
        int d = sc.nextInt();
        switch(d){
            case 1:
                System.out.println("2");
                break;
            case 2:
                System.out.println("3");
                break;
            case 3:
                System.out.println("4");
                break;
            case 4:
                System.out.println("5");
                break;
            case 5:
                System.out.println("6");
                break;
            case 6:
                System.out.println("7");
                break;
            case 7:
                System.out.println("1");
                break;
            }
        }
    }