Remove character '\u202A' 8234 from string

Question

["

I am trying to get character at 0 index in a string:<\/i>

public static String editNoHP (String noHP){
  String result;
  try {
      if(noHP.charAt(0) == '0')
          result = "62"+noHP.substring(1);
      else if(noHP.charAt(0) == '+' )
          result = noHP.substring(1);
      else if(noHP.charAt(0) == '6')
          result = noHP;
      else if(noHP.charAt(0) == '6' && noHP.charAt(1) == '2')
          result = noHP;
      else if(noHP.charAt(0) == '9')
          result = noHP;
      else
          result = "62"+noHP;
  }
  catch (Exception e){
      return "";
  }

  return result.replaceAll("[\\s\\-\\.\\^:,]","");
}

Answer 1

Finally, I found out that I can use regex to replace non-Alphanumeric characters.

So this is my finale function :

public static String editNoHP (String noHPinput){
    String result;
    try {
        noHPinput = noHPinput.trim();
        String noHP = noHPinput;
        noHP = noHP.replaceAll("[\\s\\-\\.\\^:,]","");
        noHP = noHP.replaceAll("[^A-Za-z0-9]","");
        char isinya = noHP.charAt(0);

        if(isinya == '0')
            result = "62"+noHP.substring(1);
        else if(isinya == '+' )
            result = noHP.substring(1);
        else
            result = noHP;

    }
    catch (Exception e){
        return "";
    }

    return result;
}

This regex remove all unicode characters beside Alphanumeric characters.

Answer 2

I came across the same issue!! Took me several hours to debug, because when I print out the string, the first character was shown as '?', so I thought it is a question mark. But it isn't!

Then I printed out the numerical value of the first character, and it is 8234! I was like, wtf. Completely have no idea why it shows as a question mark.

Answer 3

const getFirstChar = (string) => {return string.trim().charCodeAt(0) === 8234 ? string.trim().charAt(1) : string.trim().charAt(0);};

Answer 4

["

according to http:\/\/unicode.org\/cldr\/utility\/character.jsp?a=202A&B1=Show<\/a> \‪<\/code> is kind of a whitespace.<\/i>

public static String editNoHP (String noHP){
     noHP = noHP.trim();
     // the rest of your code...
}