Groups > comp.lang.java.programmer > #33193

Why it necessary to implement clonealbe interface?

Path	csiph.com!eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail
From	Xue Feng <xf.lotus@yahoo.com>
Newsgroups	comp.lang.java.programmer
Subject	Why it necessary to implement clonealbe interface?
Date	Tue, 24 Nov 2015 23:28:00 +0800
Organization	Aioe.org NNTP Server
Lines	10
Message-ID	<n31vi5$dkg$1@speranza.aioe.org> (permalink)
NNTP-Posting-Host	X4cfPbxD5+dSNGlF5M/xUQ.user.speranza.aioe.org
Mime-Version	1.0
Content-Type	text/plain; charset=gbk; format=flowed
Content-Transfer-Encoding	7bit
X-Complaints-To	abuse@aioe.org
User-Agent	Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0
X-Notice	Filtered by postfilter v. 0.8.2
X-Mozilla-News-Host	news://nntp.aioe.org:119
Xref	csiph.com comp.lang.java.programmer:33193

Show key headers only | View raw

A class has to implement cloneable interface, otherwise its object can 
not be cloned. IMO, it is enough that a class clone itself by inheriting 
the clone method from Object class. It is somewaht reduntant to 
implement cloneable interface. Actually, there is nothing in cloneable 
interface. Namely, it is defined as follows:

interface cloneable {
}

I wonder the reason for this design. Any explanation? Thanks.

Back to comp.lang.java.programmer | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Why it necessary to implement clonealbe interface? Xue Feng <xf.lotus@yahoo.com> - 2015-11-24 23:28 +0800
  Re: Why it necessary to implement clonealbe interface? Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-11-24 11:03 -0500
    Re: Why it necessary to implement clonealbe interface? Arne Vajhøj <arne@vajhoej.dk> - 2015-11-24 19:49 -0500
      Re: Why it necessary to implement clonealbe interface? Eric Douglas <e.d.programmer@gmail.com> - 2015-11-25 11:01 -0800
        Re: Why it necessary to implement clonealbe interface? Arne Vajhøj <arne@vajhoej.dk> - 2015-11-25 16:41 -0500
  Re: Why it necessary to implement clonealbe interface? Lew <lewbloch@gmail.com> - 2015-11-29 23:00 -0800

csiph-web