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From: Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid>
Newsgroups: comp.lang.java.programmer
Subject: Re: StringBuilder.append and CharSequence
Date: Fri, 27 Sep 2013 19:31:29 +0200
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On 2013-09-27 15:30, Andreas Leitgeb allegedly wrote:
> Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> wrote:
>> I'd make the toString() as follows to be on the safe side:
>>   char[] cs = new char[ m_len ];
>>   Arrays.fill( cs, m_ch );
>>   return new String(cs);
> 
> If this is the ONLY safe side, then there wouldn't be a point
> in implementing a CharSequence in the first place for my task.

Why not? The Standard API's StringBuilder#append(CharSequence), AFAICS,
does not call toString() -- granted, the JavaDoc stipulates nothing to
that effect.

> The apparent point for CharSequence was, that it looked like a
> vehicle to pass a number and a char into StringBuilder.append().

-- 
DF.