C语言程序设计教程（第三版）课后习题9.10 （Java代码）

解题思路:





注意事项:





参考代码:

import java.util.Scanner;

public class Main {

        public static void letter(String str){

                char[] array = str.toCharArray();

               for(int i=0;i<array.length;i++){

                        if(65<=array[i]&&array[i]<=90||97<=array[i]&&array[i]<=122){

                                if(array[i]=='Z')

                                        array[i] = 'A';

                                else if(array[i]=='z')

                                      array[i] = 'a';

                                else

                                        array[i]+=1;

                        }

                System.out.print(array[i]);

                }

        }

        public static void main(String[] arg){

                Scanner sc = new Scanner(System.in);

                String str = sc.nextLine();

                letter(str);

        }

}