数字金额转大写

来源：互联网发布：淘宝联盟怎么没有佣金编辑：程序博客网时间：2024/04/30 15:59

/**
   * 数字金额大写转换，首先写个完整的然后将如零拾替换成零要用到正则表达式
   */
   public String digitUppercase(double n) {
       String fraction[] = { "角", "分" };
       String digit[] = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" };
       String unit[][] = { { "元", "万", "亿" }, { "", "拾", "佰", "仟" } };

       String head = n < 0 ? "负" : "";
       n = Math.abs(n);

       String s = "";
       for (int i = 0; i < fraction.length; i++) {
           s += (digit[(int) (Math.floor(n * 10 * Math.pow(10, i)) % 10)] + fraction[i])
                   .replaceAll("(零.)+", "");
       }
       if (s.length() < 1) {
           s = "整";
       }
       int integerPart = (int) Math.floor(n);

       for (int i = 0; i < unit[0].length && integerPart > 0; i++) {
           String p = "";
           for (int j = 0; j < unit[1].length && n > 0; j++) {
               p = digit[integerPart % 10] + unit[1][j] + p;
               integerPart = integerPart / 10;
           }
           s = p.replaceAll("(零.)*零$", "").replaceAll("^$", "零") + unit[0][i]
                   + s;
       }
       return head
               + s.replaceAll("(零.)*零元", "元").replaceFirst("(零.)+", "")
                       .replaceAll("(零.)+", "零").replaceAll("^整$", "零元整");

}

测试方法：

public void testDigitUpper() {
       // 整数
       System.out.println(digitUppercase(0)); // 零元整
       System.out.println(digitUppercase(123)); // 壹佰贰拾叁元整
       System.out.println(digitUppercase(1000000)); // 壹佰万元整
       System.out.println(digitUppercase(100000001)); // 壹亿零壹元整
       System.out.println(digitUppercase(1000000000)); // 壹拾亿元整
       System.out.println(digitUppercase(1234567890)); // 壹拾贰亿叁仟肆佰伍拾陆万柒仟捌佰玖拾元整
       System.out.println(digitUppercase(1001100101)); // 壹拾亿零壹佰壹拾万零壹佰零壹元整
       System.out.println(digitUppercase(110101010)); // 壹亿壹仟零壹拾万壹仟零壹拾元整

       // 小数
       System.out.println(digitUppercase(0.12)); // 壹角贰分
       System.out.println(digitUppercase(123.34)); // 壹佰贰拾叁元叁角肆分
       System.out.println(digitUppercase(1000000.56)); // 壹佰万元伍角陆分
       System.out.println(digitUppercase(100000001.78)); // 壹亿零壹元柒角捌分
       System.out.println(digitUppercase(1000000000.90)); // 壹拾亿元玖角
       System.out.println(digitUppercase(1234567890.03)); // 壹拾贰亿叁仟肆佰伍拾陆万柒仟捌佰玖拾元叁分
       System.out.println(digitUppercase(1001100101.00)); // 壹拾亿零壹佰壹拾万零壹佰零壹元整
       System.out.println(digitUppercase(110101010.10)); // 壹亿壹仟零壹拾万壹仟零壹拾元壹角

       // 负数
       System.out.println(digitUppercase(-0.12)); // 负壹角贰分
       System.out.println(digitUppercase(-123.34)); // 负壹佰贰拾叁元叁角肆分
       System.out.println(digitUppercase(-1000000.56)); // 负壹佰万元伍角陆分
       System.out.println(digitUppercase(-100000001.78)); // 负壹亿零壹元柒角捌分
       System.out.println(digitUppercase(-1000000000.90)); // 负壹拾亿元玖角
       System.out.println(digitUppercase(-1234567890.03)); // 负壹拾贰亿叁仟肆佰伍拾陆万柒仟捌佰玖拾元叁分
       System.out.println(digitUppercase(-1001100101.00)); // 负壹拾亿零壹佰壹拾万零壹佰零壹元整
       System.out.println(digitUppercase(-110101010.123)); // 负壹亿壹仟零壹拾万壹仟零
   }