转 金额小写转大写

package com.cabin.util;

/**
 * <p>Title: Money</p>
 * <p>Description:
 *   类名：Money
 *   函数：String PositiveIntegerToHanStr(String NumStr)   负责把小数点前面的数转换为大写中文
 *   函数:?String NumToRMBStr(double val)   负责把输入的double型的数转换为大写中文
 *   注意java程序转换的范围是：小数点前面15位（已测试通过
 * <p>Company: </p>
 * @version 1.0
 */
import java.lang.Math;

public class MoneyUtil {
  //调试时用main函数
  public static void main(String args[]) {
    MoneyUtil mon = new MoneyUtil();
    System.out.println( -99999999999999.999 +
                       mon.toRMB( -99999999999999.999));
    System.out.println(99999999999999.999 + mon.toRMB(99999999999999.999));
    System.out.println(mon.toRMB(100000000.00));
    System.out.println(mon.toRMB(100000001.00));
    System.out.println(mon.toRMB(236.21));
    System.out.println(mon.toRMB(100210543.21));
  }

  static String HanDigiStr[] = new String[] {
      "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};
  static String HanDiviStr[] = new String[] {
      "", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿",
      "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿",
      "拾", "佰", "仟", "万", "拾", "佰", "仟"};

  static String PositiveIntegerToHanStr(String NumStr) { // 输入字符串必须正整数，只允许前导空格(必须右对齐)，不宜有前导零
    String RMBStr = "";
    boolean lastzero = false;
    boolean hasvalue = false; // 亿、万进位前有数值标记
    int len, n;
    len = NumStr.length();
    if (len > 15) {
      return "数值过大!";
    }
    for (int i = len - 1; i >= 0; i--) {
      if (NumStr.charAt(len - i - 1) == ' ') {
        continue;
      }
      n = NumStr.charAt(len - i - 1) - '0';
      if (n < 0 || n > 9) {
        return "输入含非数字字符!";
      }

      if (n != 0) {
        if (lastzero) {
          RMBStr += HanDigiStr[0]; // 若干零后若跟非零值，只显示一个零
          // 除了亿万前的零不带到后面
          //if( !( n==1 && (i%4)==1 && (lastzero || i==len-1) ) )    // 如十进位前有零也不发壹音用此行
        }
        if (! (n == 1 && (i % 4) == 1 && i == len - 1)) { // 十进位处于第一位不发壹音
          RMBStr += HanDigiStr[n];
        }
        RMBStr += HanDiviStr[i]; // 非零值后加进位，个位为空
        hasvalue = true; // 置万进位前有值标记

      }
      else {
        if ( (i % 8) == 0 || ( (i % 8) == 4 && hasvalue)) { // 亿万之间必须有非零值方显示万
          RMBStr += HanDiviStr[i]; // “亿”或“万”
        }
      }
      if (i % 8 == 0) {
        hasvalue = false; // 万进位前有值标记逢亿复位
      }
      lastzero = (n == 0) && (i % 4 != 0);
    }

    if (RMBStr.length() == 0) {
      return HanDigiStr[0]; // 输入空字符或"0"，返回"零"
    }
    return RMBStr;
  }

  public static String toRMB(double val) {
    String SignStr = "";
    String TailStr = "";
    long fraction, integer;
    int jiao, fen;

    if (val < 0) {
      val = -val;
      SignStr = "负";
    }
    if (val > 99999999999999.999 || val < -99999999999999.999) {
      return "数值位数过大!";
    }
    // 四舍五入到分
    long temp = Math.round(val * 100);
    integer = temp / 100;
    fraction = temp % 100;
    jiao = (int) fraction / 10;
    fen = (int) fraction % 10;
    if (jiao == 0 && fen == 0) {
      TailStr = "整";
    }
    else {
      TailStr = HanDigiStr[jiao];
      if (jiao != 0) {
        TailStr += "角";
      }
      if (integer == 0 && jiao == 0) { // 零元后不写零几分
        TailStr = "";
      }
      if (fen != 0) {
        TailStr += HanDigiStr[fen] + "分";
      }
    }

    // 下一行可用于非正规金融场合，0.03只显示“叁分”而不是“零元叁分”
    //        if( !integer ) return  SignStr+TailStr;

    return "￥" + SignStr + PositiveIntegerToHanStr(String.valueOf(integer)) +
        "元" + TailStr;
  }

} //