/*
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* Copyright 2017-2020 吴学文 and java110 team.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.java110.utils.util;
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/**
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* @desc add by 吴学文 17:14
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*/
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public class Money2ChineseUtil {
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// 大写数字
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private static final String[] NUMBERS = {"零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};
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// 整数部分的单位
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private static final String[] IUNIT = {"元", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿", "拾", "佰", "仟", "万", "拾", "佰", "仟"};
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// 小数部分的单位
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private static final String[] DUNIT = {"角", "分", "厘"};
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/**
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* 转换为大写的中文金额
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*
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* @param price 字符串类型的 金额数字
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* @return
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*/
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public static String toChineseChar(double price) {
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// 判断输入的金额字符串是否符合要求
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String str = price + "";
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if (StringUtil.isEmpty(str) || !str.matches("(-)?[\\d]*(.)?[\\d]*")) {
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return "抱歉，请输入数字！";
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}
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if ("0".equals(str) || "0.00".equals(str) || "0.0".equals(str)) {
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return "零元";
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}
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// 判断金额数字中是否存在负号"-"
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boolean flag = false;
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if (str.startsWith("-")) {
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// 标志位，标志此金额数字为负数
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flag = true;
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str = str.replaceAll("-", "");
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}
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// 去掉金额数字中的逗号","
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str = str.replaceAll(",", "");
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String integerStr;//整数部分数字
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String decimalStr;//小数部分数字
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// 初始化：分离整数部分和小数部分
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if (str.indexOf(".") > 0) {
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integerStr = str.substring(0, str.indexOf("."));
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decimalStr = str.substring(str.indexOf(".") + 1);
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} else if (str.indexOf(".") == 0) {
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integerStr = "";
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decimalStr = str.substring(1);
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} else {
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integerStr = str;
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decimalStr = "";
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}
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// beyond超出计算能力，直接返回
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if (integerStr.length() > IUNIT.length) {
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return "超出计算能力！";
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}
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// 整数部分数字
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int[] integers = toIntArray(integerStr);
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// 判断整数部分是否存在输入012的情况
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if (integers.length > 1 && integers[0] == 0) {
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return "抱歉，输入数字不符合要求！";
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}
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// 设置万单位
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boolean isWan = isWan5(integerStr);
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// 小数部分数字
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int[] decimals = toIntArray(decimalStr);
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// 返回最终的大写金额
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String result = getChineseInteger(integers, isWan) + getChineseDecimal(decimals);
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if (flag) {
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// 如果是负数，加上"负"
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return "负" + result;
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} else {
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return result;
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}
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}
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/**
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* 将字符串转为int数组
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*
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* @param number 数字
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* @return
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*/
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private static int[] toIntArray(String number) {
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int[] array = new int[number.length()];
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for (int i = 0; i < number.length(); i++) {
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array[i] = Integer.parseInt(number.substring(i, i + 1));
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}
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return array;
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}
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/**
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* 将整数部分转为大写的金额
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*
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* @param integers 整数部分数字
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* @param isWan 整数部分是否已经是达到【万】
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* @return
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*/
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public static String getChineseInteger(int[] integers, boolean isWan) {
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StringBuffer chineseInteger = new StringBuffer("");
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int length = integers.length;
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if (length == 1 && integers[0] == 0) {
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return "";
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}
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for (int i = 0; i < length; i++) {
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String key = "";
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if (integers[i] == 0) {
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if ((length - i) == 13)//万（亿）
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key = IUNIT[4];
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else if ((length - i) == 9) {//亿
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key = IUNIT[8];
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} else if ((length - i) == 5 && isWan) {//万
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key = IUNIT[4];
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} else if ((length - i) == 1) {//元
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key = IUNIT[0];
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}
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if ((length - i) > 1 && integers[i + 1] != 0) {
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key += NUMBERS[0];
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}
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}
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chineseInteger.append(integers[i] == 0 ? key : (NUMBERS[integers[i]] + IUNIT[length - i - 1]));
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}
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return chineseInteger.toString();
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}
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/**
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* 将小数部分转为大写的金额
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*
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* @param decimals 小数部分的数字
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* @return
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*/
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private static String getChineseDecimal(int[] decimals) {
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StringBuffer chineseDecimal = new StringBuffer("");
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for (int i = 0; i < decimals.length; i++) {
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if (i == 3) {
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break;
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}
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chineseDecimal.append(decimals[i] == 0 ? "" : (NUMBERS[decimals[i]] + DUNIT[i]));
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}
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return chineseDecimal.toString();
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}
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/**
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* 判断当前整数部分是否已经是达到【万】
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*
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* @param integerStr 整数部分数字
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* @return
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*/
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private static boolean isWan5(String integerStr) {
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int length = integerStr.length();
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if (length > 4) {
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String subInteger = "";
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if (length > 8) {
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subInteger = integerStr.substring(length - 8, length - 4);
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} else {
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subInteger = integerStr.substring(0, length - 4);
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}
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return Integer.parseInt(subInteger) > 0;
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} else {
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return false;
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}
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}
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// Test
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public static void main(String[] args) {
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double number = 3462.98;
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System.out.println(number + ": " + toChineseChar(number));
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}
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}
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