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JPA EntityManager: Why use persist() over merge()?

EntityManager.merge() can insert new objects and update existing ones. 15 Answers 15 ...
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Difference between global and device functions

Can anyone describe the differences between __global__ and __device__ ? 9 Answers ...
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What are the benefits of using C# vs F# or F# vs C#? [closed]

... than product shipment. I just got asked what's the difference between C# and F#, why did MS create F# and what scenarios would it be better than C#. ...
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Embedding JavaScript engine into .NET [closed]

just wondering if anyone has ever tried embedding and actually integrating any js engine into the .net environment. I could find and actually use (after a LOT of pain and effort, since it's pretty outdated and not quite finished) spidermonkey-dotnet project. Anyone with experience in this area? En...
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One class per file rule in .NET? [closed]

I follow this rule but some of my colleagues disagree with it and argue that if a class is smaller it can be left in the same file with other class(es). ...
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Separating class code into a header and cpp file

I am confused on how to separate implementation and declarations code of a simple class into a new header and cpp file. For example, how would I separate the code for the following class? ...
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How to increase font size in NeatBeans IDE?

I just bought a new monitor that's rather large and I am having a lot of trouble reading the text on my editor. I tried increasing the font size the usual way by going to ...
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Are iframes considered 'bad practice'? [closed]

... As with all technologies, it has its ups and downs. If you are using an iframe to get around a properly developed site, then of course it is bad practice. However sometimes an iframe is acceptable. One of the main problems with an iframe has to do with bookmarks a...
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Enabling HTTPS on express.js

I'm trying to get HTTPS working on express.js for node, and I can't figure it out. 7 Answers ...
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Interface vs Abstract Class (general OO)

...nterviews where I've been asked about the differences between an Interface and an Abstract class. I have explained every aspect of them I could think of, but it seems they are waiting for me to mention something specific, and I don't know what it is. ...