JAVA学习笔记_小写数字转换成大写且带单位

java

import java.text.DecimalFormat;
import java.text.NumberFormat;public class MoneyUtil {//总体思路：//对数字进行分级处理，级长为4//对分级后的每级分别处理，处理后得到字符串相连//如：123456=12|3456//第二级：12=壹拾贰 + “万”//第一级：3456 =叁千肆百伍拾陆 + “”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 static String toBig(String str){String ret="";for (int i=0;i<str.length();i++){String temp=str.substring(i, i+1);int n=Integer.parseInt(temp);ret+=NUM.substring(n, n+1);}return ret;}public MoneyUtil(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;}public 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 ) //末位不加单位//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);elserst = 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//Elserst += 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elsestrRst += strNow;strBefore = strNow;}//末位去零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(MoneyUtil.toBigAmt(1000000));System.out.println(MoneyUtil.toBigAmt(0.00D));System.out.println(MoneyUtil.toBigAmt(0.60D));System.out.println(MoneyUtil.toBigAmt(00.60D));System.out.println(MoneyUtil.toBigAmt(150.2101D));System.out.println(MoneyUtil.toBigAmt(15400089666.234D));System.out.println(MoneyUtil.toBigAmt(22200004444.2347D));}
}

console

壹佰万元
零元
陆角
陆角
壹佰伍拾元贰角壹分
壹佰伍拾肆亿零捌万玖仟陆佰陆拾陆元贰角叁分肆厘
贰佰贰拾贰亿零万肆仟肆佰肆拾肆元贰角叁分伍厘

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JAVA学习笔记_小写数字转换成大写且带单位_金额小写转大写

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