题解 | #简单密码#

import java.util.*;

// 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);
        String str = in.next();
        int len = str.length();
        //System.out.print(len);
        char[] arr = str.toCharArray();
        char[] res = new char[len];
        for (int i = 0; i < len; i++) {
            if (arr[i] >= 'A' && arr[i] < 'Z') {
                arr[i] = (char)((int)arr[i] + 33);
                System.out.print(arr[i]);
            } else if (arr[i] == 'Z') {
                arr[i] = 'a';
                System.out.print(arr[i]);
            } else if (arr[i] >= 'a' && arr[i] <= 'z') {
                if (arr[i] == 'a' || arr[i] == 'b' || arr[i] == 'c') {
                    arr[i] = '2';
                    System.out.print(arr[i]);
                } else if (arr[i] == 'd' || arr[i] == 'e' || arr[i] == 'f') {
                    arr[i] = '3';
                    System.out.print(arr[i]);
                } else if (arr[i] == 'g' || arr[i] == 'h' || arr[i] == 'i') {
                    arr[i] = '4';
                    System.out.print(arr[i]);
                } else if (arr[i] == 'j' || arr[i] == 'k' || arr[i] == 'l') {
                    arr[i] = '5';
                    System.out.print(arr[i]);
                } else if (arr[i] == 'm' || arr[i] == 'n' || arr[i] == 'o') {
                    arr[i] = '6';
                    System.out.print(arr[i]);
                } else if (arr[i] == 'p' || arr[i] == 'q' || arr[i] == 'r' || arr[i] == 's') {
                    arr[i] = '7';
                    System.out.print(arr[i]);
                } else if (arr[i] == 't' || arr[i] == 'u' || arr[i] == 'v') {
                    arr[i] = '8';
                    System.out.print(arr[i]);
                } else if (arr[i] == 'w' || arr[i] == 'x' || arr[i] == 'y' || arr[i] == 'z') {
                    arr[i] = '9';
                    System.out.print(arr[i]);
                }


            }else{
                System.out.print(arr[i]);
            }
        }

    }
}