输入一行电报文字将字母变成其下一字母 java

import java.util.Scanner;

public class Telegram { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("请输入电报文字："); String text = input.nextLine(); String result = ""; for (int i = 0; i < text.length(); i++) { char c = text.charAt(i); if (c >= 'a' && c <= 'y') { c = (char) (c + 1); } else if (c == 'z') { c = 'a'; } else if (c >= 'A' && c <= 'Y') { c = (char) (c + 1); } else if (c == 'Z') { c = 'A'; } result += c; } System.out.println("电报密文：" + result); }