package com.estate.expert.admin.utils;
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/**
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* @ClassName AlphaCodeUtils
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* @Description
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* @Author daisyli
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* @Date 2023/9/8
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**/
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public class AlphaCodeUtils {
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/**
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* 获取下一个字母
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* @param current 当前字母
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* @return 下一个字母
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*/
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public static String getNext(String current) {
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if (current == null || current.isEmpty()) {
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return "A";
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}
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char[] chars = current.toCharArray();
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int index = chars.length - 1;
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while (index >= 0 && chars[index] == 'Z') {
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chars[index] = 'A';
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index--;
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}
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if (index < 0) {
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return "A" + new String(chars);
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} else {
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chars[index]++;
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return new String(chars);
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}
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}
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/**
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* 获取下一个字母
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* @param current 当前字母
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* @return 下一个字母
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*/
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public static String getSubNext(String current) {
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if (current == null || current.isEmpty()) {
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return "000";
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}
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String arr[] = current.split("-");
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int lastIndex = current.lastIndexOf("-");
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int index = arr.length - 1;
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String result = current.substring(0, lastIndex + 1);
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int num = Integer.parseInt(arr[index]);
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num++;
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if (num < 10) {
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result = result + "00" + num;
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} else if (num < 100) {
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result = result + "0" + num;
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} else {
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result = result + "" + num;
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}
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return result;
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}
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}
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