1042 [编程入门]电报加密

解题思路:

注意事项:
输入字符串时用Scanner的nextLine（）方法，不然会漏掉空格。
参考代码:

package practise;

import java.text.*;

import java.util.*;

public class Main {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

String str = sc.nextLine();

char [] ch = str.toCharArray();

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

if(ch[i]>='a'&&ch[i]<'z'){

ch[i] = (char) (ch[i]+1);

}

if(ch[i] == 'z'){

ch[i] = 'a';

}

}

for (char c : ch) {

System.out.print(c);

}

}

}