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Re: "Double.toString"

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Eric Sosman wrote:

>      I wouldn't say "prominent," simply because I don't use it much:
> Whenever I want Java's string version of a double, I usually want it
> in combination with another string.  So I write
> 
> 	System.out.println("\u03c0 \u2248 " + Math.PI);
> 
> ... and let Java fill in the toString() method call.

The resulting code being created by the compiler is quite
more complicated with this rather than doing
Double.toString(Math.PI). Your example isn't that bad, but
the most common way to create a String from a double
 myString = "" + myDoubleValue
results in something like this:
 myString = new StringBuilder()
            .append("")
            .append(String.valueOf(myDoubleValue)
            .toString();

The number of objects being created is way higher than when
simply calling Double.toString(myDoubleValue). I read about
that in an article once and used the toString()-methods
ever since (makes code more readable IMHO as well).


Cheers, Lothar
-- 
Lothar Kimmeringer                E-Mail: spamfang@kimmeringer.de
               PGP-encrypted mails preferred (Key-ID: 0x8BC3CD81)

Always remember: The answer is forty-two, there can only be wrong
                 questions!

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Re: "Double.toString" Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-11-20 08:37 -0500
  Re: "Double.toString" Lothar Kimmeringer <news200709@kimmeringer.de> - 2016-11-20 22:49 +0100
    Re: "Double.toString" Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-11-21 08:25 -0500
    Re: "Double.toString" lewbloch@gmail.com - 2016-11-22 15:10 -0800
      Re: "Double.toString" Lothar Kimmeringer <news200709@kimmeringer.de> - 2016-11-24 14:07 +0100
        Re: "Double.toString" Arne Vajhøj <arne@vajhoej.dk> - 2016-11-24 11:12 -0500
        Re: "Double.toString" lewbloch@gmail.com - 2016-11-27 08:16 -0800
        Re: "Double.toString" Eric Douglas <e.d.programmer@gmail.com> - 2016-11-28 05:34 -0800

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