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| NNTP-Posting-Date | Fri, 30 Dec 2011 07:40:43 -0600 |
| Date | Fri, 30 Dec 2011 05:40:38 -0800 |
| From | Patricia Shanahan <pats@acm.org> |
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| Subject | Re: Inner class and interface question (I posted some really long code) |
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On 12/29/2011 11:02 PM, GGolf wrote: > On 12/28/2011 11:59 AM, Chad wrote: >> I'm want to put the getHead() method in the BagInterface. However, I >> can't do this because the compiler keeps saying it can't find 'class >> Node' in Location BagInterface<T>. I guess this is because Node is an >> inner class of my LinkedList class. Ideas how to fix this? Ideally I >> want to preserve the inner class. > > Referencing an inner class in the way you have described doesn't seem > quite right. An interface shouldn't have any knowledge of its > implementors. You should probably extract the class so that it's no > longer an inner class. I disagree. It is very reasonable for a linked list implementation to have an inner class representing the nodes that will be linked together. I think it should remain, and indeed be made private. I do not think the interface should say anything at all about Node. There are other ways of implementing a bag that do not have any such class. The interface should deal entirely in terms of the generic type T, the payload data type. Patricia
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Inner class and interface question (I posted some really long code) Chad <cdalten@gmail.com> - 2011-12-27 22:29 -0800
Re: Inner class and interface question (I posted some really long code) Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2011-12-27 23:27 -0800
Re: Inner class and interface question (I posted some really long code) Patricia Shanahan <pats@acm.org> - 2011-12-28 09:53 -0800
Re: Inner class and interface question (I posted some really long code) GGolf <invalid@invalid.com> - 2011-12-30 12:32 +0530
Re: Inner class and interface question (I posted some really long code) Patricia Shanahan <pats@acm.org> - 2011-12-30 05:40 -0800
Re: Inner class and interface question (I posted some really long code) Roedy Green <see_website@mindprod.com.invalid> - 2011-12-31 06:40 -0800
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