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What is polymorphism, what is it for, and how is it used?

...ism and inheritance are all closely-related concepts and they're vital to know. There have been many "silver bullets" during my long career which basically just fizzled out but the OO paradigm has turned out to be a good one. Learn it, understand it, love it - you'll be glad you did :-) (a) I ori...
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git-diff to ignore ^M

...inst older revisions of these files. Converting line endings starting from now on does not solve the problem with older revisions :-/ – neoneye Dec 11 '09 at 18:14 67 ...
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Switch branch names in git

...ed from before I started my crap work. Practically this works fine, I just now have a different branch as my main development branch. I'm wondering how I could change things around so I'm working on master again but it doesn't have my junk work and said work is on a different branch. ...
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Colspan all columns

...ggling with this damned colspan issue at different times for quite a while now – hndcrftd May 6 '11 at 17:56 30 ...
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Markdown and image alignment

...) ![my image](/img/myImage.jpg#center) Note the added URL hash #center. Now add this rule in CSS using CSS 3 attribute selectors to select images with a certain path. img[src*='#left'] { float: left; } img[src*='#right'] { float: right; } img[src*='#center'] { display: block; ma...
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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala

...rList.foldLeft(0)(_ + _)) Took 2589.363031 milli seconds reduce vs fold Now this is where it gets a little closer to the FP / mathematical roots, and a little trickier to explain. Reduce is defined formally as part of the MapReduce paradigm, which deals with orderless collections (multisets), Fo...
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Who is calling the Java Thread interrupt() method if I'm not?

...ly should not call System.exit(). (Your application does not necessarily know why it was interrupted, and it certainly does not know if there are other threads that need to be interrupted by the framework.) On the other hand, if your code is not designed to run under the control of some framewor...
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Static hosting on Amazon S3 - DNS Configuration

...onal version (http://www.example.com.s3-website-us-east-1.amazonaws.com/) Now, we can set up the DNS to give you a clean, custom URL. First, we will map www.example.com to your site. Using your DNS provider's tools, (123-reg in your case) you need to create a CNAME record to map www.example.com t...
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Solr vs. ElasticSearch [closed]

... Update Now that the question scope has been corrected, I might add something in this regard as well: There are many comparisons between Apache Solr and ElasticSearch available, so I'll reference those I found most useful myself, i....
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How do I hide .class files from the Open Resource dialog in Eclipse?

...the Derived checkbox (leave it UNCHECKED) and click OK .class files will now be hidden in future. Source: http://ayubmalik.co.uk/2011/12/hide-class-files-when-opening-a-type-or-resource-in-eclipse-ide/ share | ...