题解 | #简单错误记录#

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.HashMap; import java.util.Map;

public class Main{

private static Map map = new HashMap<Character,Integer>(){{
    put('1',1);
    put('a',2);
    put('b',2);
    put('c',2);
    put('d',3);
    put('e',3);
    put('f',3);
    put('g',4);
    put('h',4);
    put('i',4);
    put('j',5);
    put('k',5);
    put('l',5);
    put('m',6);
    put('n',6);
    put('o',6);
    put('p',7);
    put('q',7);
    put('r',7);
    put('s',7);
    put('t',8);
    put('u',8);
    put('v',8);
    put('w',9);
    put('x',9);
    put('y',9);
    put('z',9);
    put('0',0);
}};


public static void main(String[] args){

    InputStreamReader reader =   new InputStreamReader(System.in);
    StringBuffer sb= new StringBuffer();
    String str ;
    try(BufferedReader bf = new BufferedReader(reader)){

        while((str = bf.readLine())!=null){

            char[] chars= str.toCharArray();
            for(int i = 0 ; i<chars.length ; i++){

                if(48<=chars[i]&&chars[i]<=57) {
                    sb.append(chars[i]);
                    continue;
                }

                if (map.containsKey(chars[i])) {
                    sb.append(map.get(chars[i]));
                    continue;
                }

                chars[i] = (char)((chars[i] + 32 == 122)? 97 : chars[i]+33);
                sb.append(chars[i]);
            }

            System.out.println(sb);
        }

    }catch(IOException e){
        System.out.println(e.getMessage());
    }

}

}