Groups > comp.lang.java.programmer > #30692

Recommended way to make shallow copy of array

From	v_borchert@despammed.com (Volker Borchert)
Newsgroups	comp.lang.java.programmer
Subject	Recommended way to make shallow copy of array
Date	2015-01-13 19:50 +0000
Organization	Private site at Eddersheim, Germany
Message-ID	<m93su6$n1u$1@Gaia.teknon.de> (permalink)

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Given an array of runtime component type T, I want to create a new
array of the same runtime component type referencing the same objects.
The two ways I know to achieve this are Arrays.copyOf() and T[].clone().
Target VM is Hotspot Client of Sun JDK 1.7.0_72, will move on to Sun
JDK 1.8.0_<then-current> some time not so far in the future. Which
method should I prefer? Any other suggestions? Primary use case are
defensive copies, where T is some immutable type or a primitive.

TIA


-- 

"I'm a doctor, not a mechanic." Dr Leonard McCoy <mccoy@ncc1701.starfleet.fed>
"I'm a mechanic, not a doctor." Volker Borchert  <v_borchert@despammed.com>

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Recommended way to make shallow copy of array v_borchert@despammed.com (Volker Borchert) - 2015-01-13 19:50 +0000
  Re: Recommended way to make shallow copy of array Joerg Meier <joergmmeier@arcor.de> - 2015-01-13 22:40 +0100
    Re: Recommended way to make shallow copy of array Joerg Meier <joergmmeier@arcor.de> - 2015-01-13 22:44 +0100
  Re: Recommended way to make shallow copy of array Sebastian <news@seyweiler.dyndns.org> - 2015-01-13 23:04 +0100
    Re: Recommended way to make shallow copy of array Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-01-13 18:00 -0500
    Re: Recommended way to make shallow copy of array v_borchert@despammed.com (Volker Borchert) - 2015-01-19 20:15 +0000

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