RMB小写转换成大写

/**  * * @类名: RMBChange  * @作用: 人民币小写转换为大写 * @日期: 2013-1-7 下午09:31:12  *   */public class RMBChange {public static void main(String agrs[]) {//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(-110101010.10));  // 负壹亿壹仟零壹拾万壹仟零壹拾元壹角}/** * 数字金额大写转换，思想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 static 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");}}

转载自：http://www.oschina.net/code/snippet_32903_18900