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Is System.nanoTime() completely useless?

...ventov's answer offers a more up-to-date perspective. That post is wrong, and nanoTime is safe. There's a comment on the post which links to a blog post by David Holmes, a realtime and concurrency guy at Sun. It says: System.nanoTime() is implemented using the QueryPerformanceCounter/QueryPerfo...
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JSF vs Facelets vs JSP [duplicate]

... JSF is a standardized Java framework for web UIs based on an MVC pattern JSPs are a (much older) standard for generating web pages from templates - these can be used as the View in a JSF application, but also separately from JSF. Facele...
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Create a .txt file if doesn't exist, and if it does append a new line

I would like to create a .txt file and write to it, and if the file already exists I just want to append some more lines: 1...
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How to do what head, tail, more, less, sed do in Powershell? [closed]

On windows, using Powershell, what are the equivalent commands to linux's head , tail , more , less and sed ? 7 Answe...
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List changes unexpectedly after assignment. How do I clone or copy it to prevent this?

... any modifications to new_list changes my_list everytime. Why is this, and how can I clone or copy the list to prevent it? ...
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When and why would you seal a class?

In C# and C++/CLI the keyword sealed (or NotInheritable in VB) is used to protect a class from any inheritance chance (the class will be non-inheritable). I know that one feature of object-oriented programming is inheritance and I feel that the use of sealed goes against this feature, it stop...
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IntelliJ IDEA: Move line?

...d to ActionScript editing only -- move statement is not always what I want and sometimes it is not correct when editing AS code. ...
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How do I hide the status bar in a Swift iOS app?

...ould implement prefersStatusBarHidden on your view controller(s): Swift 3 and later override var prefersStatusBarHidden: Bool { return true } share | improve this answer | ...
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AngularJS: Service vs provider vs factory

What are the differences between a Service , Provider and Factory in AngularJS? 30 Answers ...
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How do you know when to use fold-left and when to use fold-right?

I'm aware that fold-left produces left-leaning trees and fold-right produces right-leaning trees, but when I reach for a fold, I sometimes find myself getting bogged down in headache-inducing thought trying to determine which kind of fold is appropriate. I usually end up unwinding the entire proble...