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What does an underscore in front of an import statement mean?

I saw this example from sqlite3 on GitHub : 4 Answers 4 ...
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Is there any way to hide “-” (Delete) button while editing UITableView

On my iphone app, I have a UITableView in edit mode, where user is allowed only to reorder the rows no delete permission is given. ...
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How to handle Objective-C protocols that contain properties?

...follow | edited Apr 22 '16 at 14:10 Dan Rosenstark 63k5454 gold badges262262 silver badges402402 bronze badges ...
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Why should I declare a virtual destructor for an abstract class in C++?

I know it is a good practice to declare virtual destructors for base classes in C++, but is it always important to declare virtual destructors even for abstract classes that function as interfaces? Please provide some reasons and examples why. ...
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Setting environment variables for accessing in PHP when using Apache

I have a Linux environment and I have a PHP Web Application that conditionally runs based on environment variables using getenv in PHP. I need to know how these environment variables need to be set for the application to work correctly. I am not sure how to set this up on Apache. ...
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What are paramorphisms?

...lassic paper , I'm stuck on paramorphisms. Unfortunately the section is quite thin, and the Wikipedia page doesn't say anything. ...
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Making a UITableView scroll when text field is selected

...d error, I'm giving up and asking the question. I've seen a lot of people with similar problems but can't get all the answers to work right. ...
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How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?

I have an app that uses 256-bit AES encryption which is not supported by Java out of the box. I know to get this to function correctly I install the JCE unlimited strength jars in the security folder. This is fine for me being the developer, I can install them. ...
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Is there a difference between single and double quotes in Java?

... Use single quotes for literal chars, double quotes for literal Strings, like so: char c = 'a'; String s = "hello"; They cannot be used any other way around (like in Python, for example). ...
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What is the leading LINQ for JavaScript library? [closed]

... I was going to suggest this but it's not really the same as linq to objects. (If it was, why would we need both Rx and Linq to Objects in .NET?) It works in the opposite direction to normal Linq in terms of the flow of data. – Daniel E...