Groups > comp.lang.java.programmer > #21308

Re: Substring changes (JDK 1.7)

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From	Jan Burse <janburse@fastmail.fm>
Newsgroups	comp.lang.java.programmer
Subject	Re: Substring changes (JDK 1.7)
Date	Thu, 10 Jan 2013 20:12:02 +0100
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Hi,

It was originally observed in a Scala newsgroup:

why is String grouped() so slow?
https://groups.google.com/forum/?fromgroups=#!topic/scala-user/D1qmblInfyg

Bye

Jan Burse schrieb:
> Jan Burse schrieb:
>> Dear All,
>>
>>  > Recent versions of the JDK do not reuse the backing char[].
>>  > The reason is that the offset and length fields have been
>>  > removed from String to save memory.
>>
>> Did this affect some of your code?
>>
>> Bye
>
> Its from JDK 1.7 Update 10
>
> Look see:
>
> C:\Users\Jan Burse>java -version
> java version "1.7.0_10"
> Java(TM) SE Runtime Environment (build 1.7.0_10-b18)
> Java HotSpot(TM) 64-Bit Server VM (build 23.6-b04, mixed mode)
>
> rt.jar:

Thread

Substring changes (JDK 1.7) Jan Burse <janburse@fastmail.fm> - 2013-01-10 14:38 +0100
  Re: Substring changes (JDK 1.7) markspace <markspace@nospam.nospam> - 2013-01-10 08:15 -0800
    Re: Substring changes (JDK 1.7) Joshua Cranmer <Pidgeot18@verizon.invalid> - 2013-01-10 10:48 -0600
      Re: Substring changes (JDK 1.7) markspace <markspace@nospam.nospam> - 2013-01-10 09:22 -0800
        Re: Substring changes (JDK 1.7) Lars Enderin <lars.enderin@telia.com> - 2013-01-10 19:35 +0100
  Re: Substring changes (JDK 1.7) Jan Burse <janburse@fastmail.fm> - 2013-01-10 20:08 +0100
    Re: Substring changes (JDK 1.7) Jan Burse <janburse@fastmail.fm> - 2013-01-10 20:12 +0100
  Re: Substring changes (JDK 1.7) Roedy Green <see_website@mindprod.com.invalid> - 2013-01-10 12:22 -0800
    Re: Substring changes (JDK 1.7) Robert Klemme <shortcutter@googlemail.com> - 2013-01-10 22:58 +0100
      Re: Substring changes (JDK 1.7) Roedy Green <see_website@mindprod.com.invalid> - 2013-01-10 15:20 -0800
      Re: Substring changes (JDK 1.7) Robert Klemme <shortcutter@googlemail.com> - 2013-01-11 07:29 +0100
        Re: Substring changes (JDK 1.7) Roedy Green <see_website@mindprod.com.invalid> - 2013-01-10 23:19 -0800
          Re: Substring changes (JDK 1.7) Robert Klemme <shortcutter@googlemail.com> - 2013-01-12 17:50 +0100
            Re: Substring changes (JDK 1.7) markspace <markspace@nospam.nospam> - 2013-01-12 09:59 -0800
              Re: Substring changes (JDK 1.7) Jan Burse <janburse@fastmail.fm> - 2013-01-12 19:14 +0100
                Re: Substring changes (JDK 1.7) markspace <markspace@nospam.nospam> - 2013-01-12 10:36 -0800
                Re: Substring changes (JDK 1.7) Jan Burse <janburse@fastmail.fm> - 2013-01-13 12:09 +0100
    Re: Substring changes (JDK 1.7) Jan Burse <janburse@fastmail.fm> - 2013-01-11 09:23 +0100
      Re: Substring changes (JDK 1.7) "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2013-01-11 08:29 +0000
        Re: Substring changes (JDK 1.7) Jan Burse <janburse@fastmail.fm> - 2013-01-11 10:56 +0100
          Re: Substring changes (JDK 1.7) Jan Burse <janburse@fastmail.fm> - 2013-01-11 14:30 +0100

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