C语言程序设计教程（第三版）课后习题3.7 （Java代码）

解题思路:

注意事项:

参考代码:

import java.util.Scanner;

    public class China {

        public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        String str = sc.nextLine();

        JiaMi(str);

    }

    public static void JiaMi(String str){

        int length = str.length();

        for(int i=0;i<length;i++){

            char c=str.charAt(i);

            c=(char)(c+4);

            System.out.print(c);

        }

    }

}