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  • java 金额的大小写转换类

    /**
     *金额大小写转换工具类
     */
     public class MoneyUtil {
      /** 大写数字 */
      private static final String[] NUMBERS = { "零", "壹", "贰", "叁", "肆", "伍", "陆",
          "柒", "捌", "玖" };
      /** 整数部分的单位 */
      private static final String[] IUNIT = { "元", "拾", "佰", "仟", "万", "拾", "佰",
          "仟", "亿", "拾", "佰", "仟", "万", "拾", "佰", "仟" };
      /** 小数部分的单位 */
      private static final String[] DUNIT = { "角", "分", "厘" };
      /**
       * 得到大写金额。
       */
      public static String toChinese(String str) {
        str = str.replaceAll(",", "");// 去掉","
        String integerStr;// 整数部分数字
        String decimalStr;// 小数部分数字
        // 初始化:分离整数部分和小数部分
        if (str.indexOf(".") > 0) {
          integerStr = str.substring(0, str.indexOf("."));
          decimalStr = str.substring(str.indexOf(".") + 1);
        } else if (str.indexOf(".") == 0) {
          integerStr = "";
          decimalStr = str.substring(1);
        } else {
          integerStr = str;
          decimalStr = "";
        }
        // integerStr去掉首0,不必去掉decimalStr的尾0(超出部分舍去)
        if (!integerStr.equals("")) {
          integerStr = Long.toString(Long.parseLong(integerStr));
          if (integerStr.equals("0")) {
            integerStr = "";
          }
        }
        // overflow超出处理能力,直接返回
        if (integerStr.length() > IUNIT.length) {
          System.out.println(str + ":超出处理能力");
          return str;
        }
        int[] integers = toArray(integerStr);// 整数部分数字
        boolean isMust5 = isMust5(integerStr);// 设置万单位
        int[] decimals = toArray(decimalStr);// 小数部分数字
        return getChineseInteger(integers, isMust5) + getChineseDecimal(decimals);
      }
      /**
       * 整数部分和小数部分转换为数组,从高位至低位
       */
      private static int[] toArray(String number) {
        int[] array = new int[number.length()];
        for (int i = 0; i < number.length(); i++) {
          array[i] = Integer.parseInt(number.substring(i, i + 1));
        }
        return array;
      }
      /**
       * 得到中文金额的整数部分。
       */
      private static String getChineseInteger(int[] integers, boolean isMust5) {
        StringBuffer chineseInteger = new StringBuffer("");
        int length = integers.length;
        for (int i = 0; i < length; i++) {
          // 0出现在关键位置:1234(万)5678(亿)9012(万)3456(元)
          // 特殊情况:10(拾元、壹拾元、壹拾万元、拾万元)
          String key = "";
          if (integers[i] == 0) {
            if ((length - i) == 13)// 万(亿)(必填)
              key = IUNIT[4];
            else if ((length - i) == 9)// 亿(必填)
              key = IUNIT[8];
            else if ((length - i) == 5 && isMust5)// 万(不必填)
              key = IUNIT[4];
            else if ((length - i) == 1)// 元(必填)
              key = IUNIT[0];
            // 0遇非0时补零,不包含最后一位
            if ((length - i) > 1 && integers[i + 1] != 0)
              key += NUMBERS[0];
          }
          chineseInteger.append(integers[i] == 0 ? key
              : (NUMBERS[integers[i]] + IUNIT[length - i - 1]));
        }
        return chineseInteger.toString();
      }
      /**
       * 得到中文金额的小数部分。
       */
      private static String getChineseDecimal(int[] decimals) {
        StringBuffer chineseDecimal = new StringBuffer("");
        for (int i = 0; i < decimals.length; i++) {
          // 舍去3位小数之后的
          if (i == 3)
            break;
          chineseDecimal.append(decimals[i] == 0 ? ""
              : (NUMBERS[decimals[i]] + DUNIT[i]));
        }
        return chineseDecimal.toString();
      }
      /**
       * 判断第5位数字的单位"万"是否应加。
       */
      private static boolean isMust5(String integerStr) {
        int length = integerStr.length();
        if (length > 4) {
          String subInteger = "";
          if (length > 8) {
            // 取得从低位数,第5到第8位的字串
            subInteger = integerStr.substring(length - 8, length - 4);
          } else {
            subInteger = integerStr.substring(0, length - 4);
          }
          return Integer.parseInt(subInteger) > 0;
        } else {
          return false;
        }
      }
      public static void main(String[] args) {
    //   MoneyUtil moneyUtil  = new MoneyUtil();
    //   System.out.println(moneyUtil.toChinese("10001"));
      }
    }
     
          
    

    package com.shaofei.test;
    
    import java.util.HashMap;
    import java.util.Map;
    
    public class CNNMFilter {  
        private static final Character[] CN_NUMERIC = { '一', '二', '三', '四', '五',  
                '六', '七', '八', '九', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖',  
                '十', '百', '千', '拾', '佰', '仟', '万', '亿', '○', 'O', '零' };  
      
        private static Map<Character, Integer> cnNumeric = null;  
      
        static {  
            cnNumeric = new HashMap<Character, Integer>(40, 0.85f);  
            for (int j = 0; j < 9; j++)  
                cnNumeric.put(CN_NUMERIC[j], j + 1);  
            for (int j = 9; j < 18; j++)  
                cnNumeric.put(CN_NUMERIC[j], j - 8);  
            cnNumeric.put('两', 2);  
            cnNumeric.put('十', 10);  
            cnNumeric.put('拾', 10);  
            cnNumeric.put('百', 100);  
            cnNumeric.put('佰', 100);  
            cnNumeric.put('千', 1000);  
            cnNumeric.put('仟', 1000);  
            cnNumeric.put('万', 10000);  
            cnNumeric.put('亿', 100000000);  
        }  
        public static int isCNNumeric(char c) {  
            Integer i = cnNumeric.get(c);  
            if (i == null)  
                return -1;  
            return i.intValue();  
        }  
        public static int cnNumericToArabic(String cnn, boolean flag) {  
      
            cnn = cnn.trim();  
            if (cnn.length() == 1)  
                return isCNNumeric(cnn.charAt(0));  
      
            if (flag)  
                cnn = cnn.replace('佰', '百').replace('仟', '千').replace('拾', '十')  
                        .replace('零', ' ');  
            // System.out.println(cnn);  
            int yi = -1, wan = -1, qian = -1, bai = -1, shi = -1;  
            int val = 0;  
            yi = cnn.lastIndexOf('亿');  
            if (yi > -1) {  
                val += cnNumericToArabic(cnn.substring(0, yi), false) * 100000000;  
                if (yi < cnn.length() - 1)  
                    cnn = cnn.substring(yi + 1, cnn.length());  
                else  
                    cnn = "";  
      
                if (cnn.length() == 1) {  
                    int arbic = isCNNumeric(cnn.charAt(0));  
                    if (arbic <= 10)  
                        val += arbic * 10000000;  
                    cnn = "";  
                }  
            }  
      
            wan = cnn.lastIndexOf('万');  
            if (wan > -1) {  
                val += cnNumericToArabic(cnn.substring(0, wan), false) * 10000;  
                if (wan < cnn.length() - 1)  
                    cnn = cnn.substring(wan + 1, cnn.length());  
                else  
                    cnn = "";  
                if (cnn.length() == 1) {  
                    int arbic = isCNNumeric(cnn.charAt(0));  
                    if (arbic <= 10)  
                        val += arbic * 1000;  
                    cnn = "";  
                }  
            }  
      
            qian = cnn.lastIndexOf('千');  
            if (qian > -1) {  
                val += cnNumericToArabic(cnn.substring(0, qian), false) * 1000;  
                if (qian < cnn.length() - 1)  
                    cnn = cnn.substring(qian + 1, cnn.length());  
                else  
                    cnn = "";  
                if (cnn.length() == 1) {  
                    int arbic = isCNNumeric(cnn.charAt(0));  
                    if (arbic <= 10)  
                        val += arbic * 100;  
                    cnn = "";  
                }  
            }  
      
            bai = cnn.lastIndexOf('百');  
            if (bai > -1) {  
                val += cnNumericToArabic(cnn.substring(0, bai), false) * 100;  
                if (bai < cnn.length() - 1)  
                    cnn = cnn.substring(bai + 1, cnn.length());  
                else  
                    cnn = "";  
                if (cnn.length() == 1) {  
                    int arbic = isCNNumeric(cnn.charAt(0));  
                    if (arbic <= 10)  
                        val += arbic * 10;  
                    cnn = "";  
                }  
            }  
      
            shi = cnn.lastIndexOf('十');  
            if (shi > -1) {  
                if (shi == 0)  
                    val += 1 * 10;  
                else  
                    val += cnNumericToArabic(cnn.substring(0, shi), false) * 10;  
                if (shi < cnn.length() - 1)  
                    cnn = cnn.substring(shi + 1, cnn.length());  
                else  
                    cnn = "";  
            }  
      
            cnn = cnn.trim();  
            for (int j = 0; j < cnn.length(); j++)  
                val += isCNNumeric(cnn.charAt(j))  
                        * Math.pow(10, cnn.length() - j - 1);  
      
            return val;  
        }  
      
        public static int qCNNumericToArabic(String cnn) {  
            int val = 0;  
            cnn = cnn.trim();  
            for (int j = 0; j < cnn.length(); j++)  
                val += isCNNumeric(cnn.charAt(j))  
                        * Math.pow(10, cnn.length() - j - 1);  
            return val;  
        }  
      
        public static void main(String[] args) {  
            int val = 0;  
            long s = System.nanoTime();  
            val = cnNumericToArabic("三亿二千零六万七千五百六", true);  
            System.out.println(val);  
            val = cnNumericToArabic("一九九八", true);  
            System.out.println(val);  
            long e = System.nanoTime();  
            System.out.format("Done[" + val + "], cost: %.5fsec
    ",  
                    ((float) (e - s)) / 1E9);  
        }  
      
    }

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  • 原文地址:https://www.cnblogs.com/shaofeer/p/11154435.html
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