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Does java.util.List.isEmpty() check if the list itself is null? [duplicate]

Does java.util.List.isEmpty() check if the list itself is null , or do I have to do this check myself? 8 Answers ...
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When and why would you seal a class?

...mployees, but you don't have any role after part-time employees in your organization. In this case, you might want to seal PartTimeEmployee to prevent further branching. On the other hand, if you have hourly or weekly part-time employees, it might make sense to inherit them from PartTimeEmployee. ...
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django unit tests without a db

Is there a possibility to write django unittests without setting up a db? I want to test business logic which doesn't require the db to set up. And while it is fast to setup a db, I really don't need it in some situations. ...
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passport.js RESTful auth

...ser to pass the Facebook access token back to the application via some mechanism. I hope this answers most of the questions. Of course you can replace Facebook with Twitter, Google, or any other OAuth based authentication service. I'd be interested to know if someone has a simpler way to deal wit...
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Advantages of using display:inline-block vs float:left in CSS

Normally, when we want to have multiple DIVs in a row we would use float: left , but now I discovered the trick of display:inline-block ...
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What is the difference between IEnumerator and IEnumerable? [duplicate]

What are the differences between IEnumerator and IEnumerable? 4 Answers 4 ...
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What is Clojure useful for? [closed]

...l opinion, but Clojure flat out provides better language constructs for organizing software correctly (without causing undue pain for the working programmer) of all the languages I've used thus far academically and professionally - C, C++, Objective-C, Java, JavaScript, Python, Ruby. Which isn't to...
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Indentation shortcuts in Visual Studio

I'm new to Visual Studio 2010 and C#. How can I indent the selected text to left/right by using shortcuts? 8 Answers ...
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Include .so library in apk in android studio [duplicate]

I am trying my hands on developing a simple android application in which I am trying to use sqlcipher , which uses .so libraries internally. I have read the documentation on how to use sqlcipher with android app . I have followed the steps and it compiles without any error. But, at runtime it thro...
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Is there a way to do method overloading in TypeScript?

Is there a way to do method overloading in TypeScript language? 6 Answers 6 ...