I have this String :
String myStr = "[email protected]"
I want to get just the "something.bad" from myStr ?
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will it always be an email adress and you want what's before the @ or is it just a substring you need?talnicolas– talnicolas2011-08-11 13:06:36 +00:00Commented Aug 11, 2011 at 13:06
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It will be always email formatFarmer– Farmer2011-08-11 13:07:28 +00:00Commented Aug 11, 2011 at 13:07
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Then Jon Skeet's is the answertalnicolas– talnicolas2011-08-11 13:07:54 +00:00Commented Aug 11, 2011 at 13:07
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1Uhm...there's a String API, you know?mre– mre2011-08-11 13:11:47 +00:00Commented Aug 11, 2011 at 13:11
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@talnicolas of course jon skeets answer is the answer :PRMT– RMT2011-08-11 13:15:49 +00:00Commented Aug 11, 2011 at 13:15
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2 Answers
You just need to use substring having found the right index to chop at:
int index = myStr.indexOf('@');
// TODO: work out what to do if index == -1
String firstPart = myStr.substring(0, index);
EDIT: Fairly obviously, the above takes the substring before the first @. If you want the substring before the last @ you would write:
int index = myStr.lastIndexOf('@');
// TODO: work out what to do if index == -1
String firstPart = myStr.substring(0, index);
answered Aug 11, 2011 at 13:06
6 Comments
Voo
Actually since we're talking about email - and as we all know legal email addresses may actually contain @s - one should really use lastIndexOf. Not that anyone would ever use such an email address, because pretty much every website ever contains code such as the above, so it probably won't matter in reality ;)
Jon Skeet
@Voo: Well, we don't really know the details of what the OP wants. Maybe, maybe not.
Voo
He said in a comment to his original post that it will always be email format.
Jon Skeet
@Voo: Yes, but not what he wanted to use the result for.
Voo
I just assumed he wanted to get rid of the domain and it's an easy to make assumption that no local-part may ever contain an @. But you could be right - he would have to clarify a bit.
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You can use
String str = myStr.split("@")[0];
It will split the string in two parts and then you can get the first String element
