I am new to Java and have been battling this problem with google-fu ad experimentation for the last hour. I need to convert s1 to s2, where s1 and s2 are:
String s1 ="\\u00C1";
//...
String s2 ="Á";
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why do you use `\\\` in your string ? – c00kiemon5ter Jan 12 '12 at 01:55
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I get these types of string from Twitter API, so, i dont have control over it. – Val Jan 12 '12 at 03:06
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1Are you using the JSON version of the API? If so, you should be using a JSON parser, which will *take care of this for you*, not re-inventing the wheel. – Thanatos Jan 12 '12 at 08:02
2 Answers
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You need to scan the string to find the "\u" part, then extract the following four characters into a separate string, then use Integer.parseInt(String s, int radix) with a radix of 16 to convert 00C1 to an int, and then cast that int to char.
Mike Nakis
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Thank you. I hoped for a shorter solution, like maybe using regex replacement functions. You really have to parse the string on character-by-character level, huh? – Val Jan 12 '12 at 03:03
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I am afraid so. At least I do not know of any shorter solution. I mean, if there was a shortcut, I think that [those guys answering that question](http://stackoverflow.com/questions/53844/how-can-i-evaluate-a-c-sharp-expression-dynamically) a while ago would have mentioned it. – Mike Nakis Jan 12 '12 at 09:40
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$ cat Test.java
public class Test {
public static void main(String[] args) {
String s = "\u00C1";
System.out.println(s);
}
}
$ javac Test.java
$ java Test
Á
automatically
c00kiemon5ter
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I think that if she really meant `"\u00C1"` instead of `"\\u00C1"` she would have figured it out by herself and she would not be asking the question. – Mike Nakis Jan 12 '12 at 01:59
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Yes, this solution would be too obvious for me. The string in question really has two backslashes. – Val Jan 12 '12 at 03:03