java金额转换
A. java如何将数字转为中文大写
import org.apache.commons.lang3.StringUtils;
/**
* @Title: ConvertUpMoney
* @Description: 将数字金额转换为大写中文金额
* @date: 2019年6月18日 下午10:52:27
*/
public class ConvertUpMoney {
// 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"};
/**
* 转换为大写的中文金额
* @param str 字符串类型的 金额数字
* @return
*/
public static String toChinese(String str) {
// 判断输入的金额字符串是否符合要求
if (StringUtils.isBlank(str) || !str.matches("(-)?[\\d]*(.)?[\\d]*")) {
return "抱歉，请输入数字！";
}
if("0".equals(str) || "0.00".equals(str) || "0.0".equals(str)) {
return "零元";
}
// 判断金额数字中是否存在负号"-"
boolean flag = false;
if(str.startsWith("-")){
// 标志位，标志此金额数字为负数
flag = true;
str = str.replaceAll("-", "");
}
// 去掉金额数字中的逗号","
str = str.replaceAll(",", "");
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 = "";
}
// beyond超出计算能力，直接返回
if(integerStr.length()>IUNIT.length) {
return "超出计算能力！";
}
// 整数部分数字
int[] integers = toIntArray(integerStr);
// 判断整数部分是否存在输入012的情况
if (integers.length>1 && integers[0] == 0) {
return "抱歉，输入数字不符合要求！";
}
// 设置万单位
boolean isWan = isWan5(integerStr);
// 小数部分数字
int[] decimals = toIntArray(decimalStr);
// 返回最终的大写金额
String result = getChineseInteger(integers, isWan) + getChineseDecimal(decimals);
if(flag){
// 如果是负数，加上"负"
return "负" + result;
}else{
return result;
}
}
/**
* 将字符串转为int数组
* @param number 数字
* @return
*/
private static int[] toIntArray(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;
}
/**
* 将整数部分转为大写的金额
* @param integers 整数部分数字
* @param isWan 整数部分是否已经是达到【万】
* @return
*/
public static String getChineseInteger(int[] integers,boolean isWan) {
StringBuffer chineseInteger = new StringBuffer("");
int length = integers.length;
if (length == 1 && integers[0] == 0) {
return "";
}
for(int i=0; i<length; i++) {
String key = "";
if(integers[i] == 0) {
if((length - i) == 13)//万（亿）
key = IUNIT[4];
else if((length - i) == 9) {//亿
key = IUNIT[8];
}else if((length - i) == 5 && isWan) {//万
key = IUNIT[4];
}else if((length - i) == 1) {//元
key = IUNIT[0];
}
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();
}
/**
* 将小数部分转为大写的金额
* @param decimals 小数部分的数字
* @return
*/
private static String getChineseDecimal(int[] decimals) {
StringBuffer chineseDecimal = new StringBuffer("");
for(int i = 0;i<decimals.length;i++) {
if(i == 3) {
break;
}
chineseDecimal.append(decimals[i]==0?"":(NUMBERS[decimals[i]]+DUNIT[i]));
}
return chineseDecimal.toString();
}
/**
* 判断当前整数部分是否已经是达到【万】
* @param integerStr 整数部分数字
* @return
*/
private static boolean isWan5(String integerStr) {
int length = integerStr.length();
if(length > 4) {
String subInteger = "";
if(length > 8) {
subInteger = integerStr.substring(length- 8,length -4);
}else {
subInteger = integerStr.substring(0,length - 4);
}
return Integer.parseInt(subInteger) > 0;
}else {
return false;
}
}
// Test
public static void main(String[] args) {
String number = "12.56";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "1234567890563886.123";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "1600";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "156,0";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "-156,0";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "0.12";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "0.0";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "01.12";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "0125";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "-0125";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
number = "sdw5655";
System.out.println(number+": "+ConvertUpMoney.toChinese(number));
System.out.println(null+": "+ConvertUpMoney.toChinese(null));
}
}
B. java金额转换的问题,想要保留小数点后两位,这样会下标越界该怎么改
哈？你的程序好复杂，我都没看明白
BigDecimal直接设置小数并设置四舍五入的方式不就好了吗？
C. Java中，怎么将一段浮点数值转换成人民币格式例如将12004567.866转换成 ：壹千贰百万
直接通过以下接口类方法实现即可：importjava.math.BigDecimal;/***金额工具类**@authorzn**@Date2013-2-1*@[email protected]*/publicclassMoneyUtil{privatestaticfinalintDFT_SCALE=2;/**大写数字*/privatestaticfinalString[]NUMBERS={"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"};/**整数部分的单位*/privatestaticfinalString[]IUNIT={"元","拾","佰","仟","万","拾","佰","仟","亿","拾","佰","仟","万","拾","佰","仟"};/**小数部分的单位*/privatestaticfinalString[]DUNIT={"角","分","厘"};/***得到大写金额。*/publicstaticStringtoChinese(Stringstr){str=str.replaceAll(",","");//去掉","StringintegerStr;//整数部分数字StringdecimalStr;//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);}elseif(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");returnstr;}int[]integers=toArray(integerStr);//整数部分数字booleanisMust5=isMust5(integerStr);//设置万单位int[]decimals=toArray(decimalStr);//小数部分数字returngetChineseInteger(integers,isMust5)+getChineseDecimal(decimals);}/***整数部分和小数部分转换为数组，从高位至低位*/privatestaticint[]toArray(Stringnumber){int[]array=newint[number.length()];for(inti=0;i1&&integers[i+1]!=0)key+=NUMBERS[0];}chineseInteger.append(integers[i]==0?key:(NUMBERS[integers[i]]+IUNIT[length-i-1]));}returnchineseInteger.toString();}/***得到中文金额的小数部分。*/(int[]decimals){StringBufferchineseDecimal=newStringBuffer("");for(inti=0;i4){StringsubInteger="";if(length>8){//TODO12-9-17//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);}returnInteger.parseInt(subInteger)>0;}else{returnfalse;}}/***BigDecimal相乘,四舍五入保留0位**@parama*@paramb*@returna*b*/publicstaticBigDecimalmutiply(Stringa,Stringb,introundingMode){BigDecimalbd=newBigDecimal(a);returnbd.multiply(newBigDecimal(b)).setScale(DFT_SCALE,roundingMode);}/***BigDecimal相除,四舍五入保留两位**@parama*@paramb*@returna/b*/publicstaticBigDecimaldiv(Stringa,Stringb,introundingMode){BigDecimaldecimal1=newBigDecimal(a);BigDecimaldecimal2=newBigDecimal(b);returndecimal1.divide(decimal2,DFT_SCALE,roundingMode);}/***BigDecimal相加,四舍五入保留两位**@parama*@paramb*@returna+b*/publicstaticBigDecimalsum(Stringa,Stringb,introundingMode){BigDecimaldecimal1=newBigDecimal(a);BigDecimaldecimal2=newBigDecimal(b);//DecimalFormatformat=newDecimalFormat("#0.00");returndecimal1.add(decimal2).setScale(DFT_SCALE,roundingMode);}/***BigDecimal相减,四舍五入保留两位**@parama*@paramb*@returna+b*/publicstaticBigDecimalsub(Stringa,Stringb,introundingMode){BigDecimaldecimal1=newBigDecimal(a);BigDecimaldecimal2=newBigDecimal(b);//DecimalFormatformat=newDecimalFormat("#0.00");returndecimal1.subtract(decimal2).setScale(DFT_SCALE,roundingMode);}/***100.00为10000**@parama*@return*/publicstaticBigDecimalformat(Stringa,introundingMode){returnnewBigDecimal(a).multiply(newBigDecimal(100)).setScale(0,roundingMode);}publicstaticvoidmain(String[]args){Stringnumber="54452";System.out.println(number+""+MoneyUtil.toChinese(number));number="30200";System.out.println(number+""+MoneyUtil.toChinese(number));number="30000.05";System.out.println(number+""+MoneyUtil.toChinese(number));number="30000.00";System.out.println(number+""+MoneyUtil.toChinese(number));}}备注：最后面的main方法是具体的调用。
D. Java 关于中文大写金额与阿拉伯数字 互相转换的问题（eclipse版）
package test.format;import java.text.NumberFormat;import java.util.HashMap;public class SimpleMoneyFormat {
public static final String EMPTY = "";public static final String ZERO = "零";public static final String ONE = "壹";public static final String TWO = "贰";public static final String THREE = "叁";public static final String FOUR = "肆"; public static final String FIVE = "伍";public static final String SIX = "陆";public static final String SEVEN = "柒"; public static final String EIGHT = "捌"; public static final String NINE = "玖"; public static final String TEN = "拾"; public static final String HUNDRED = "佰"; public static final String THOUSAND = "仟"; public static final String TEN_THOUSAND = "万"; public static final String HUNDRED_MILLION = "亿"; public static final String YUAN = "元"; public static final String JIAO = "角"; public static final String FEN = "分"; public static final String DOT = "."; private static SimpleMoneyFormat formatter = null;private HashMap chineseNumberMap = new HashMap(); private HashMap chineseMoneyPattern = new HashMap(); private NumberFormat numberFormat = NumberFormat.getInstance(); private SimpleMoneyFormat() { numberFormat.setMaximumFractionDigits(4); numberFormat.setMinimumFractionDigits(2); numberFormat.setGroupingUsed(false); chineseNumberMap.put("0", ZERO); chineseNumberMap.put("1", ONE); chineseNumberMap.put("2", TWO); chineseNumberMap.put("3", THREE); chineseNumberMap.put("4", FOUR); chineseNumberMap.put("5", FIVE); chineseNumberMap.put("6", SIX); chineseNumberMap.put("7", SEVEN); chineseNumberMap.put("8", EIGHT); chineseNumberMap.put("9", NINE); chineseNumberMap.put(DOT, DOT); chineseMoneyPattern.put("1", TEN); chineseMoneyPattern.put("2", HUNDRED); chineseMoneyPattern.put("3", THOUSAND); chineseMoneyPattern.put("4", TEN_THOUSAND); chineseMoneyPattern.put("5", TEN); chineseMoneyPattern.put("6", HUNDRED); chineseMoneyPattern.put("7", THOUSAND); chineseMoneyPattern.put("8", HUNDRED_MILLION); }
public static SimpleMoneyFormat getInstance() { if (formatter == null) formatter = new SimpleMoneyFormat(); return formatter; }
public String format(String moneyStr) { checkPrecision(moneyStr); String result; result = convertToChineseNumber(moneyStr); result = addUnitsToChineseMoneyString(result); return result; } public String format(double moneyDouble) { return format(numberFormat.format(moneyDouble)); } public String format(int moneyInt) { return format(numberFormat.format(moneyInt));
} public String format(long moneyLong) { return format(numberFormat.format(moneyLong)); }
public String format(Number moneyNum) { return format(numberFormat.format(moneyNum)); }
private String convertToChineseNumber(String moneyStr) { String result; StringBuffer cMoneyStringBuffer = new StringBuffer(); for (int i = 0; i < moneyStr.length(); i++) { cMoneyStringBuffer.append(chineseNumberMap.get(moneyStr.substring(i, i + 1))); }
//拾佰仟万亿等都是汉字里面才有的单位，加上它们 int indexOfDot = cMoneyStringBuffer.indexOf(DOT); int moneyPatternCursor = 1; for (int i = indexOfDot - 1; i > 0; i--) { cMoneyStringBuffer.insert(i, chineseMoneyPattern.get(EMPTY + moneyPatternCursor)); moneyPatternCursor = moneyPatternCursor == 8 ? 1 : moneyPatternCursor + 1; } String fractionPart = cMoneyStringBuffer.substring(cMoneyStringBuffer.indexOf(".")); cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("."), cMoneyStringBuffer.length()); while (cMoneyStringBuffer.indexOf("零拾") != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零拾"), cMoneyStringBuffer.indexOf("零拾") + 2, ZERO);
} while (cMoneyStringBuffer.indexOf("零佰") != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零佰"), cMoneyStringBuffer.indexOf("零佰") + 2, ZERO);
}while (cMoneyStringBuffer.indexOf("零仟") != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零仟"), cMoneyStringBuffer.indexOf("零仟") + 2, ZERO);
}while (cMoneyStringBuffer.indexOf("零万") != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零万"), cMoneyStringBuffer.indexOf("零万") + 2, TEN_THOUSAND);
} while (cMoneyStringBuffer.indexOf("零亿") != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零亿"), cMoneyStringBuffer.indexOf("零亿") + 2, HUNDRED_MILLION); } while (cMoneyStringBuffer.indexOf("零零") != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零零"), cMoneyStringBuffer.indexOf("零零") + 2, ZERO);
} if (cMoneyStringBuffer.lastIndexOf(ZERO) == cMoneyStringBuffer.length() - 1) cMoneyStringBuffer.delete(cMoneyStringBuffer.length() - 1, cMoneyStringBuffer.length()); cMoneyStringBuffer.append(fractionPart);
result = cMoneyStringBuffer.toString(); return result; }private String addUnitsToChineseMoneyString(String moneyStr) { String result; StringBuffer cMoneyStringBuffer = new StringBuffer(moneyStr); int indexOfDot = cMoneyStringBuffer.indexOf(DOT); cMoneyStringBuffer.replace(indexOfDot, indexOfDot + 1, YUAN); cMoneyStringBuffer.insert(cMoneyStringBuffer.length() - 1, JIAO); cMoneyStringBuffer.insert(cMoneyStringBuffer.length(), FEN); if (cMoneyStringBuffer.indexOf("零角零分") != -1)//没有零头，加整
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零角零分"), cMoneyStringBuffer.length(), "整"); else if (cMoneyStringBuffer.indexOf("零分") != -1)//没有零分，加整 cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零分"), cMoneyStringBuffer.length(), "整");
else { if(cMoneyStringBuffer.indexOf("零角")!=-1)
cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("零角"),cMoneyStringBuffer.indexOf("零角")+2);
tmpBuffer.append("整"); } result = cMoneyStringBuffer.toString(); return result; } private void checkPrecision(String moneyStr) {
int fractionDigits = moneyStr.length() - moneyStr.indexOf(DOT) - 1; if (fractionDigits > 2) throw new RuntimeException("金额" + moneyStr + "的小数位多于两位。"); //精度不能比分低 }public static void main(String args[]) { System.out.println(getInstance().format(new Double(10010001.01))); }}
E. java如何把大写的金额改成小写
/**
* @(#)SimpleMoneyFormat.java
*
*金额转换，阿拉伯数字的金额转换为中国传统的形式输出
* @lpxuan
* @version 1.00 2010/7/31
*/
import java.text.NumberFormat;
import java.util.HashMap;
import java.lang.StringBuffer;
public class SimpleMoneyFormat {
public static final String EMPTY="";
public static final String ZERO="零";
public static final String ONE="壹";
public static final String TWO="贰";
public static final String THREE="叁";
public static final String FOUR="肆";
public static final String FIVE="伍";
public static final String SIX="陆";
public static final String SEVEN="柒";
public static final String EIGHT="捌";
public static final String NINE="玖";
public static final String TEN="拾";
public static final String HUNDRED="佰";
public static final String THOUSAND="仟";
public static final String TEN_THOUSAND="万";
public static final String HUNDRED_MILLION="亿";
public static final String YUAN="元";
public static final String JIAO="角";
public static final String FEN="分";
public static final String DOT=".";
private static SimpleMoneyFormat formatter=null;
private HashMap chineseNumberMap=new HashMap();
private HashMap chineseMoenyPattern=new HashMap();
private NumberFormat numberFormat=NumberFormat.getInstance();
//私有构造函数
private SimpleMoneyFormat() {
numberFormat.setMaximumFractionDigits(4);
numberFormat.setMinimumFractionDigits(2);
numberFormat.setGroupingUsed(false);
chineseNumberMap.put("0",ZERO);
chineseNumberMap.put("1",ONE);
chineseNumberMap.put("2",TWO);
chineseNumberMap.put("3",THREE);
chineseNumberMap.put("4",FOUR);
chineseNumberMap.put("5",FIVE);
chineseNumberMap.put("6",SIX);
chineseNumberMap.put("7",SEVEN);
chineseNumberMap.put("8",EIGHT);
chineseNumberMap.put("9",NINE);
chineseNumberMap.put(DOT,DOT);
chineseMoenyPattern.put("1",TEN);
chineseMoenyPattern.put("2",HUNDRED);
chineseMoenyPattern.put("3",THOUSAND);
chineseMoenyPattern.put("4",TEN_THOUSAND);
chineseMoenyPattern.put("5",TEN);
chineseMoenyPattern.put("6",HUNDRED);
chineseMoenyPattern.put("7",THOUSAND);
chineseMoenyPattern.put("8",HUNDRED_MILLION);
}
//单例模式
public static SimpleMoneyFormat getInstance(){
if(formatter==null)
formatter=new SimpleMoneyFormat();
return formatter;
}
public String format(String moneyStr){
checkPrecision(moneyStr);
String result;
result=convertToChineseNumber(moneyStr);
result=addUnitsToChineseMoenyString(result);
return result;
}
public String format(double moneyDouble){
return format(numberFormat.format(moneyDouble));
}
public String format(int moneyInt){
return format(numberFormat.format(moneyInt));
}
public String format(long moneyLong){
return format(numberFormat.format(moneyLong));
}
public String format(Number moneyNum){
return format(numberFormat.format(moneyNum));
}
private String convertToChineseNumber(String moneyStr){
String result;
StringBuffer cMoneyStringBuffer =new StringBuffer();
for(int i=0;i<moneyStr.length();i++){
cMoneyStringBuffer.append(chineseNumberMap.
get(moneyStr.substring(i,i+1)));
}
int indexOfDot=cMoneyStringBuffer.indexOf(DOT);
int moneyPatternCursor=1;
for(int i=indexOfDot-1;i>0;i--){
cMoneyStringBuffer.insert(i,
chineseMoenyPattern.get(EMPTY+moneyPatternCursor));
moneyPatternCursor=moneyPatternCursor==
8?1:moneyPatternCursor+1;
}
String fractionPart=cMoneyStringBuffer.substring(
cMoneyStringBuffer.indexOf("."));
cMoneyStringBuffer.delete(
cMoneyStringBuffer.indexOf("."),
cMoneyStringBuffer.length());
while(cMoneyStringBuffer.indexOf("零拾")!=-1){
cMoneyStringBuffer.replace(
cMoneyStringBuffer.indexOf("零拾"),
cMoneyStringBuffer.indexOf("零拾")+2,ZERO);
}
while(cMoneyStringBuffer.indexOf("零佰")!=-1){
cMoneyStringBuffer.replace(
cMoneyStringBuffer.indexOf("零佰"),
cMoneyStringBuffer.indexOf("零佰")+2,ZERO);
}
while(cMoneyStringBuffer.indexOf("零仟")!=-1){
cMoneyStringBuffer.replace(
cMoneyStringBuffer.indexOf("零仟"),
cMoneyStringBuffer.indexOf("零仟")+2,ZERO);
}
while(cMoneyStringBuffer.indexOf("零万")!=-1){
cMoneyStringBuffer.replace(
cMoneyStringBuffer.indexOf("零万"),
cMoneyStringBuffer.indexOf("零万")+2,TEN_THOUSAND);
}
while(cMoneyStringBuffer.indexOf("零亿")!=-1){
cMoneyStringBuffer.replace(
cMoneyStringBuffer.indexOf("零亿"),
cMoneyStringBuffer.indexOf("零亿")+2,HUNDRED_MILLION);
}
while(cMoneyStringBuffer.indexOf("零零")!=-1){
cMoneyStringBuffer.replace(
cMoneyStringBuffer.indexOf("零零"),
cMoneyStringBuffer.indexOf("零零")+2,ZERO);
}
if(cMoneyStringBuffer.lastIndexOf(ZERO)
==cMoneyStringBuffer.length()-1){
cMoneyStringBuffer.delete(
cMoneyStringBuffer.length()-1,
cMoneyStringBuffer.length());
}
cMoneyStringBuffer.append(fractionPart);
result=cMoneyStringBuffer.toString();
return result;
}
private String addUnitsToChineseMoenyString(String moneyStr){
String result;
StringBuffer cMoneyStringBuffer=new StringBuffer(moneyStr);
int indexOfDot=cMoneyStringBuffer.indexOf(DOT);
cMoneyStringBuffer.replace(indexOfDot,indexOfDot+1,YUAN);
cMoneyStringBuffer.insert(cMoneyStringBuffer.length()-1,JIAO);
cMoneyStringBuffer.insert(cMoneyStringBuffer.length(),FEN);
//拾佰仟万亿等都是汉字里面才有的单位，加上它们
if(cMoneyStringBuffer.indexOf("零角零分")!=-1)//去掉零头，加整
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零角零分"),
cMoneyStringBuffer.length(),"整");
else if(cMoneyStringBuffer.indexOf("零分")!=-1)//去掉零分，加整
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零分"),
cMoneyStringBuffer.length(),"整");
else if(cMoneyStringBuffer.indexOf("零角")!=-1)
cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("零角"),
cMoneyStringBuffer.indexOf("零角")+2);
result=cMoneyStringBuffer.toString();
return result;
}
//检查精度的合法性
private void checkPrecision(String moneyStr){
int fractionDigits=moneyStr.length()-moneyStr.indexOf(DOT)-1;
if(fractionDigits>2)//精度不能比分低
throw new RuntimeException("金额"+moneyStr+"的小数位数多余两位.");
}
public static void main(String[] args){
System.out.println(getInstance().format(new Double(10010001.01)));
}
}