Best way to convert English numbers to Arabic [duplicate]

Question

Possible Duplicate:
Convert String to another locale in java

I want to convert a java String that contains english numbers to arabic one's so i make this

int  arabic_zero_unicode= 1632; String str = "13240453"; StringBuilder builder = new StringBuilder();  for(int i =0; i < str.length(); ++i ) {     builder.append((char)((int)str.charAt(i) - 48+arabic_zero_unicode)); }  System.out.println("Number in English : "+str); System.out.println("Number In Arabic : "+builder.toString() ); 

the out put

Number in English : 13240453 Number In Arabic : ١٣٢٤٠٤٥٣ 

is there another more efficient way to do this ?

Answer 1

This gives a 5x speedup over your version with a string of length 3036. This also checks to make sure you're only changing digits. It's about a 6x speedup without the if/else check.

Please pardon me if the characters are incorrect/misplaced. I had to find some of them from another source.

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() );