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From: =?ISO-8859-1?Q?Sven_K=F6hler?= <remove-sven.koehler@gmail.com>
Newsgroups: comp.lang.java.programmer
Subject: Re: StringBuilder.append and CharSequence
Date: Fri, 27 Sep 2013 15:41:30 +0300
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Am 25.09.2013 17:19, schrieb Andreas Leitgeb:
> Is it safe to use "stringBuilder.append(this);" in a CharSequence
> implementation's .toString(), or could this lead to a recursive
> loop, if some version of a Java class library implements the
> append() for CharSequence by using it's toString() ?
> 
> I read the javadoc for StringBuilder/Appendable.append(CharSequence)
> but it isn't clear to me.

To me, this isn't clear either. However, I wonder:
What keeps you from writing safe code? I would suspect, that your
CharSequence might store some kind of char array. So why not call the
corresponding append method? Or even if it does not store a char array,
then why not write the for loop to append char by char? It's just 2
lines and it's probably not even slower.


Regards,
  Sven