金额阿拉伯数字转成中文的大写金额

红太狼 2022-05-11 08:52 298阅读 0赞

package test;
    import java.text.DecimalFormat;
    import java.text.NumberFormat;
    /** * * @author admin * @Description:用于金额阿拉伯数字转成中文的大写金额 */
    public class RMB { 
         private double amount = 0.0D;
         private static final String NUM = "零壹贰叁肆伍陆柒捌玖";
         private static final String UNIT = "仟佰拾个";
         private static final String GRADEUNIT = "仟万亿兆";
         private static final String DOTUNIT = "角分厘";
         private static final int GRADE = 4;
         private static final String SIGN = "￥";
         private static final NumberFormat nf = new DecimalFormat("#0.###");
         public RMB(double amount) { 
             this.amount = amount;
         }
         public String toBigAmt() { 
             return toBigAmt(this.amount);
         }
         public static String toBigAmt(double amount) { 
             String amt = nf.format(amount);
             Double d = new Double(amount);
             String dotPart = "";//取小数位
             String intPart = "";//取整数位
             int dotPos;
             if((dotPos = amt.indexOf('.'))!=-1) { 
                  intPart = amt.substring(0, dotPos);
                  dotPart = amt.substring(dotPos + 1);
             }else { 
                  intPart = amt;
             }
             if (intPart.length() > 16) throw new java.lang.InternalError("The amount is too big.");
             String intBig = intToBig (intPart);
             String dotBig = dotToBig(dotPart);
             //以下代码稍做修改,现在是完美的代码啦!
             if ((dotBig.length() == 0) &&(intBig.length() != 0)) { 
                  return intBig + "元整";
             }else if ((dotBig.length() == 0) && (intBig.length() == 0)) { 
                  return intBig + "零元";
             }else if((dotBig.length() != 0) && (intBig.length() != 0)) { 
                  return intBig + "元" +dotBig;
             }else { 
                  return dotBig;
             }
             /* if( dotBig.length() == 0) { return intBig + "元整"; }else { return intBig + "元" +dotBig; } */
         }
         private static String dotToBig(String dotPart) { 
             //得到转换后的大写(小数部分)
             String strRet = "";
             for (int i = 0; i < dotPart.length() && i < 3; i++){ 
                  int num;
                  if ((num = Integer.parseInt(dotPart.substring(i, i + 1))) != 0) { 
                      strRet += NUM.substring(num, num+ 1) + DOTUNIT.substring(i, i +1);
                  }
             }
             return strRet;
         }
         private static String intToBig(String intPart){ 
             //得到转换后的大写(整数部分)
             int grade;//级长
             String result = "";
             String strTmp = "";
             //得到当级长
             grade = intPart.length() / GRADE;
             //调整级次长度
             if (intPart.length() % GRADE != 0) { 
                  grade +=1;
             }
             //对每级数字处理
             for (int i = grade; i >= 1; i--) { 
                  strTmp = getNowGradeVal(intPart, i);//取得当前级次数字
                  result += getSubUnit(strTmp);//转换大写
                  result = dropZero(result);//除零
                  //加级次单位
                  if(i > 1) { //未位不加单位
                      //单位不能相连续
                      if(getSubUnit(strTmp).equals("零零零零")){ 
                           result += "零" + GRADEUNIT.substring(i - 1,i);
                      }else { 
                           result += GRADEUNIT.substring(i - 1,i);
                      }
                  }
             }
             return result;
         }
         private static String getNowGradeVal(String strVal, int grade) { 
             //得到当前级次的串
             String rst;
             if(strVal.length() <= grade * GRADE) { 
                  rst = strVal.substring(0, strVal.length() - (grade - 1) * GRADE);
             }else { 
                  rst = strVal.substring(strVal.length() - grade * GRADE, strVal.length() - (grade - 1) * GRADE);
             }
             return rst;
         }
         private static String getSubUnit(String strVal) { 
             //数值转换
             String rst = "";
             for(int i = 0; i < strVal.length(); i++) { 
                  String s = strVal.substring(i, i +1);
                  int num = Integer.parseInt(s);
                  if (num == 0) { 
                      //"零"作特殊处理
                      if(i != strVal.length()) { 
                           //转换后数末位不能为零
                           rst += "零";
                      }
                  }else { 
                      //if Intkey = 1 And i =2 Then
                      //“壹拾”作特殊处理
                      //“壹拾”合理
                      //Else
                      rst += NUM.substring(num, num +1);
                      //End if
                      //追加单位
                      if(i != strVal.length() - 1) { //个位不加单位
                           rst += UNIT.substring(i + 4 - strVal.length(), i + 4 - strVal.length() + 1);
                      }
                  }
             }
             return rst;
         }
         private static String dropZero(String strVal) { 
             //去除连继的“零”
             String strRst;
             String strBefore;//前一位置字符
             String strNow;//现在位置字符
             strBefore = strVal.substring(0, 1);
             strRst = strBefore;
             for(int i = 1; i < strVal.length(); i++) { 
                  strNow = strVal.substring(i, i + 1);
                  if (strNow.equals("零") && strBefore.equals("零")){ 
                      //同时为零
                  }else { 
                      strRst += strNow;
                  }
                  strBefore = strNow;
             }
             //未位去零
             if (strRst.substring(strRst.length() - 1, strRst.length()).equals("零")){ 
                  strRst = strRst.substring(0, strRst.length() - 1);
             }
             return strRst;
         }
         public static void main(String[] args) { 
             System.out.println(RMB.toBigAmt(999999.23));
             System.out.println(RMB.toBigAmt(1000000.00));
             System.out.println(RMB.toBigAmt(780000.00));
             System.out.println(RMB.toBigAmt(525000.00));
             System.out.println(RMB.toBigAmt(665495));
              System.out.println(RMB.toBigAmt(15400089666.234));
              System.out.println(RMB.toBigAmt(22200004444.2347));
         }
    }