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Clone() vs Copy constructor- which is recommended in java [duplicate]

clone method vs copy constructor in java. which one is correct solution. where to use each case? 6 Answers ...
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How to dismiss a Twitter Bootstrap popover by clicking outside?

... Caveat: The solution above allows multiple popovers to be open at once. One popover at a time please: Update: Bootstrap 3.0.x, see code or fiddle http://jsfiddle.net/mattdlockyer/C5GBU/2/ $('body').on('click', function (e) { $('[data-toggle="popover"]').each(function () { //the 'is'...
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How can I unit test Arduino code?

...ly best illustrated with a real world example. An actual working example One of my pet projects found here has some simple tests that run on the PC. For this answer submission, I'll just go over how I mocked-up some of Arduino library functions and the tests I wrote to test those mock-ups. This ...
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What programming practice that you once liked have you since changed your mind about? [closed]

...trol... *sigh*). There are way too few comments out there. (and fewer good ones) – Thomas Jul 7 '09 at 11:29 5 ...
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What are the pros and cons of the leading Java HTML parsers? [closed]

...u can traverse it "the usual way" using the W3C DOM and JAXP API. The only ones which jumps out are HtmlUnit and Jsoup. HtmlUnit HtmlUnit provides a completely own API which gives you the possibility to act like a webbrowser programmatically. I.e. enter form values, click elements, invoke JavaScript...
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How can I convert JSON to CSV?

...ed by [u' and ']. What's the (non-post-processing) workaround? if there is one... :) – Dror Jul 10 '14 at 12:20 3 ...
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Is Java “pass-by-reference” or “pass-by-value”?

...lowed to the Dog it points to (the Dog object at address 42) that Dog (the one at address 42) is asked to change his name to Max at line "BBB" a new Dog is created. Let's say he's at address 74 we assign the parameter someDog to 74 at line "CCC" someDog is followed to the Dog it points to (th...
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Why does C# disallow readonly local variables?

... One reason is there is no CLR support for a readonly local. Readonly is translated into the CLR/CLI initonly opcode. This flag can only be applied to fields and has no meaning for a local. In fact, applying it to a local w...
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data.frame rows to a list

...etely abuse the data.frame (as I do) and like to keep the $ functionality, one way is to split you data.frame into one-line data.frames gathered in a list : > df = data.frame(x=c('a','b','c'), y=3:1) > df x y 1 a 3 2 b 2 3 c 1 # 'convert' into a list of data.frames ldf = lapply(as.list(1:d...
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What is the difference between task and thread?

... A task is something you want done. A thread is one of the many possible workers which performs that task. In .NET 4.0 terms, a Task represents an asynchronous operation. Thread(s) are used to complete that operation by breaking the work up into chunks a...