题解 | #字符串加解密#

import java.util.*;  
  
public class Main {  
    public static void main(String[] args) {  
        String inttab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";  
        String outtab = "bcdefghijklmnopqrstuvwxyzaBCDEFGHIJKLMNOPQRSTUVWXYZA1234567890";  
        String s1, s2;  
        Scanner scanner = new Scanner(System.in);  
        // System.out.print("请输入两个字符串：");  
        // System.out.print("第一个字符串：");  
        s1 = scanner.nextLine();  
        // System.out.print("第二个字符串：");  
        s2 = scanner.nextLine();  
        scanner.close();  
          
        for (int i = 0; i < s1.length(); i++) {  
            char c = s1.charAt(i);  
            int index = inttab.lastIndexOf(c);  
            s1 = s1.substring(0, i) + outtab.charAt(index) + s1.substring(i + 1);  
        }  
          
        for (int i = 0; i < s2.length(); i++) {  
            char c = s2.charAt(i);  
            int index = outtab.lastIndexOf(c);  
            s2 = s2.substring(0, i) + inttab.charAt(index) + s2.substring(i + 1);  
        }  
          
        System.out.println(s1);  
        System.out.println(s2);  
    }  
}