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Re: Java is faster!

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Yes and Yes.

Eric Sosman schrieb:
> On 9/25/2016 2:05 PM, j4n bur53 wrote:
>> Since Java is typesafe, and this typesafety goes
>> vary far, recently, after much time, I have
>> even created a runtime error when assigning
>> an array cell, so the component type of the array
>> didn't match the element type.
>
>      Many Java programmers consider this a Good Thing.
>
>> I think there is a general limit. This typesafety
>> is still ingrained in the runtime. Although casts
>> are highly optimized, they don't go away. I recently
>> made some other experiments, and bumpted my head
>> speed wise just because of the many casts I needed.
>
>      How did you measure the time consumed by the casts?  That is,
> what kind of experiment did you perform to accomplish "the same"
> computation without the casts?
>
>      Hmm: I suppose you could re-write your classes to use Object
> references instead of Strings and JButtons and so on, and insert
> casts as needed:
>
>      // String s = "Hello";
>      Object s = "Hello";
>
>      // int length = s.length();
>      int length = ((String) s).length();
>
> ... for some very large set of references, and then compare the
> run times of the cast-free and cast-heavy versions.  Did you do
> something of that kind, or measure the penalty in some other way?
>

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Re: Java is faster! Roedy Green <inquiry@mindprod.com> - 2016-09-25 03:28 -0700
  Re: Java is faster! j4n bur53 <janburse@fastmail.fm> - 2016-09-25 20:05 +0200
    Re: Java is faster! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-09-25 14:44 -0400
      Re: Java is faster! j4n bur53 <janburse@fastmail.fm> - 2016-09-26 23:09 +0200
        Re: Java is faster! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-09-27 10:51 -0400
          Re: Java is faster! Sebastian <nowhere@nirvana.org> - 2016-09-28 23:50 +0530
            Re: Java is faster! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-09-28 15:14 -0400
              Re: Java is faster! j4n bur53 <janburse@fastmail.fm> - 2016-09-29 09:11 +0200
    Re: Java is faster! Arne Vajhøj <arne@vajhoej.dk> - 2016-09-29 21:24 -0400
  Re: Java is faster! Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-25 16:37 -0400
    Re: Java is faster! Eric Douglas <e.d.programmer@gmail.com> - 2016-09-26 05:47 -0700
      Re: Java is faster! Robert Klemme <shortcutter@googlemail.com> - 2016-10-04 23:04 +0200
  Re: Java is faster! Arne Vajhøj <arne@vajhoej.dk> - 2016-09-29 21:18 -0400

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