Android_NumberToMoneyVND

import java.text.DecimalFormat;
/**
* Created by caotung on 1/16/16.
*/
public class VietnameseNumberToWords {
private static final String[] tensNames = {
"",
" mười",
" hai mươi",
" ba mươi",
" bốn mươi",
" năm mươi",
" sáu mươi",
" bảy mươi",
" tám mươi",
" chín mươi"
};
private static final String[] numNames = {
"",
" một",
" hai",
" ba",
" bốn",
" năm",
" sáu",
" bảy",
" tám",
" chín",
" mười",
" mười một",
" mười hai",
" mười ba",
" mười bốn",
" mười lăm",
" mười sáu",
" mười bảy",
" mười tám",
" mười chín"
};
private VietnameseNumberToWords() {}
private static String convertLessThanOneThousand(int number) {
String soFar;
if (number % 100 < 20){
soFar = numNames[number % 100];
number /= 100;
}
else {
soFar = numNames[number % 10];
number /= 10;
soFar = tensNames[number % 10] + soFar;
number /= 10;
}
if (number == 0) return soFar;
return numNames[number] + " trăm" + soFar;
}
public static String convert(long number) {
// 0 to 999 999 999 999
if (number == 0) { return "không"; }
String snumber = Long.toString(number);
// pad with "0"
String mask = "000000000000";
DecimalFormat df = new DecimalFormat(mask);
snumber = df.format(number);
// XXXnnnnnnnnn
int billions = Integer.parseInt(snumber.substring(0,3));
// nnnXXXnnnnnn
int millions = Integer.parseInt(snumber.substring(3,6));
// nnnnnnXXXnnn
int hundredThousands = Integer.parseInt(snumber.substring(6,9));
// nnnnnnnnnXXX
int thousands = Integer.parseInt(snumber.substring(9,12));
String tradBillions;
switch (billions) {
case 0:
tradBillions = "";
break;
case 1 :
tradBillions = convertLessThanOneThousand(billions)
+ " tỷ ";
break;
default :
tradBillions = convertLessThanOneThousand(billions)
+ " tỷ ";
}
String result = tradBillions;
String tradMillions;
switch (millions) {
case 0:
tradMillions = "";
break;
case 1 :
tradMillions = convertLessThanOneThousand(millions)
+ " triệu ";
break;
default :
tradMillions = convertLessThanOneThousand(millions)
+ " triệu ";
}
result = result + tradMillions;
String tradHundredThousands;
switch (hundredThousands) {
case 0:
tradHundredThousands = "";
break;
case 1 :
tradHundredThousands = "một ngàn ";
break;
default :
tradHundredThousands = convertLessThanOneThousand(hundredThousands)
+ " ngàn ";
}
result = result + tradHundredThousands;
String tradThousand;
tradThousand = convertLessThanOneThousand(thousands);
result = result + tradThousand;
// remove extra spaces!
result = result + " đồng";
return result.replaceAll("^\\s+", "").replaceAll("\\b\\s{2,}\\b", " ");
}
/**
* testing
* @param args
*/
public static void main(String[] args) {
System.out.println("*** " + VietnameseNumberToWords.convert(0));
System.out.println("*** " + VietnameseNumberToWords.convert(1));
System.out.println("*** " + VietnameseNumberToWords.convert(16));
System.out.println("*** " + VietnameseNumberToWords.convert(100));
System.out.println("*** " + VietnameseNumberToWords.convert(118));
System.out.println("*** " + VietnameseNumberToWords.convert(200));
System.out.println("*** " + VietnameseNumberToWords.convert(219));
System.out.println("*** " + VietnameseNumberToWords.convert(800));
System.out.println("*** " + VietnameseNumberToWords.convert(801));
System.out.println("*** " + VietnameseNumberToWords.convert(1316));
System.out.println("*** " + VietnameseNumberToWords.convert(1000000));
System.out.println("*** " + VietnameseNumberToWords.convert(2000000));
System.out.println("*** " + VietnameseNumberToWords.convert(3000200));
System.out.println("*** " + VietnameseNumberToWords.convert(700000));
System.out.println("*** " + VietnameseNumberToWords.convert(9000000));
System.out.println("*** " + VietnameseNumberToWords.convert(9001000));
System.out.println("*** " + VietnameseNumberToWords.convert(123456789));
System.out.println("*** " + VietnameseNumberToWords.convert(2147483647));
System.out.println("*** " + VietnameseNumberToWords.convert(3000000010L));
}
}