Persian Number Convertor

PersianNumber

public class PersianNumbers {

    private static String[] persianNumbers = new String[]{ "۰", "۱", "۲", "۳", "۴", "۵", "۶", "۷", "۸", "۹" };


    public static String toPersianNumber(String text) {
        if (text.length() == 0)
            return "";
        String out = "";
        int length = text.length();
        for (int i = 0; i < length; i++) {
            char c = text.charAt(i);
            if ('0' <= c && c <= '9') {
                int number = Integer.parseInt(String.valueOf(c));
                out += persianNumbers[number];
            } else if (c == '٫') {
                out += '،';
            } else {
                out += c;
            }

        }
        return out;
    }
}

PersianNumberOptimum

char[] arabicChars = {'٠','١','٢','٣','٤','٥','٦','٧','٨','٩'};
StringBuilder builder = new StringBuilder();
for(int i =0;i<str.length();i++)
{
    if(Character.isDigit(str.charAt(i)))
    {
        builder.append(arabicChars[(int)(str.charAt(i))-48]);
    }
    else
    {
        builder.append(str.charAt(i));
    }
}
System.out.println("Number in English : "+str);
System.out.println("Number In Arabic : "+builder.toString() );