Convert Big decimal number to word Romanian language.

Romanian Number to Word

package com.mani;
 

import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.util.ArrayList;
/* Manikandan Github @saecmca*/
public class RomanianNumbersToWords {
    private static final String[] tensNames =
            { "", "zece", "douazeci", "treizeci", "patruzeci", "cincizeci", "saizeci", "saptezeci", "optzeci", "nouazeci" };
    private static final String[] numNames =
            { "", "unu", "doi", "trei", "patru", "cinci", "sase", "sapte", "opt", "noua", "zece", "unsprezece", "doisprezece",
                    "treisprezece", "paisprezece,", "cincisprezece", "saisprezece", "saptesprezece", "optsprezece", "nouasprezece" };
    public RomanianNumbersToWords() {
    }
    private static String convertLessThanOneThousand(int number) {
        String soFar;
        int original = number;
        if (number % 100 < 20) {
            soFar = numNames[number % 100];
            number /= 100;
        } else {
            if (number % 10 != 0)
                soFar = " si " + numNames[number % 10]+" ";
            else
                soFar = numNames[number % 10];
            number /= 10;
            soFar = tensNames[number % 10] + soFar;
            number /= 10;
        }
        if (number == 0) {
            return soFar;
        }
        if (original >= 100 && original <= 199)
            return "o sută " + soFar;
        else if (original >= 200 && original <= 299)
            return "doua sute " + soFar;
        else
            return numNames[number] + " sute " + soFar;
    }
    public static String convertToRomanian(long number) {
        if (number == 0) {
            return "zero";
        }
        String sNumber = Long.toString(number);
        String mask = "000000000000";
        DecimalFormat df = new DecimalFormat(mask);
        sNumber = df.format(number);
        int billions = Integer.parseInt(sNumber.substring(0, 3));
        int millions = Integer.parseInt(sNumber.substring(3, 6));
        int hundredThousands = Integer.parseInt(sNumber.substring(6, 9));
        int thousands = Integer.parseInt(sNumber.substring(9, 12));
        String tradBillions;
        switch (billions) {
            case 0:
                tradBillions = "";
                break;
            case 1:
                tradBillions = " un bilion ";
                break;
            case 2:
                tradBillions = " doua bilioane ";
                break;
            default:
                tradBillions = convertLessThanOneThousand(billions).replaceAll("doi", "doua") + " bilioane ";
        }
        String result = tradBillions;
        String tradMillions;
        switch (millions) {
            case 0:
                tradMillions = "";
                break;
            case 1:
                tradMillions = " un milion ";
                break;
            case 2:
                tradMillions = " doua milioane ";
                break;
            default:
                tradMillions = convertLessThanOneThousand(millions).replaceAll("doi", "doua") + " milioane ";
        }
        result = result + tradMillions;
        String tradHundredThousands;
        switch (hundredThousands) {
            case 0:
                tradHundredThousands = "";
                break;
            case 1:
                tradHundredThousands = "o mie ";
                break;
            case 2:
                tradHundredThousands = "doua mii ";
                break;
            default:
                tradHundredThousands = convertLessThanOneThousand(hundredThousands).replaceAll("doi", "doua") + " mii ";
        }
        result = result + tradHundredThousands;
        String tradThousand;
        tradThousand = convertLessThanOneThousand(thousands);
        result = result + tradThousand;
        return result.replaceAll("^\\s+", "").replaceAll("\\b\\s{2,}\\b", " ");
    }
    public static String convert(BigDecimal number) {
        String nr=number.setScale(2, RoundingMode.HALF_UP).toString();
        String beforeSeparator = nr.substring(0, nr.indexOf("."));
        Long beforeSeparatorLong=Long.parseLong(beforeSeparator);
        String afterSeparator=nr.substring(nr.indexOf(".") +1);
        int afterSeparatorInt=Integer.parseInt(afterSeparator);
        String s =RomanianNumbersToWords.convertToRomanian(beforeSeparatorLong) + (afterSeparatorInt==0 ? "" :"."+afterSeparator);
        return s;
    }
   /* public static void main(String[] args) {
        BigDecimal theNr = new BigDecimal(951232567.11d);
        System.out.println(RomanianNumbersToWords.convert(theNr));
    }*/


}