[编程题]配置文件恢复

考虑的比较简单，完全直译。。。

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String s1 = "reset";
    String s2 = "reset board";
    String s3 = "board add";
    String s4 = "board delete";
    String s5 = "reboot backplane";
    String s6 = "backplane abort";

    while(sc.hasNextLine()){
        String s = sc.nextLine();
        if(s.matches(s1)){
            System.out.println("reset what");
        }else if (s.matches(s2)) {
            System.out.println("board fault");
        }else if (s.matches(s3)) {
            System.out.println("where to add");
        }else if (s.matches(s4)) {
            System.out.println("no board at all");
        }else if (s.matches(s5)) {
            System.out.println("impossible");
        }else if (s.matches(s6)) {
            System.out.println("install first");
        }else{
            System.out.println("unknown command");
        }
    }

}

}