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Why aren't superclass __init__ methods automatically invoked?
...l distinction between Python's __init__ and those other languages constructors is that __init__ is not a constructor: it's an initializer (the actual constructor (if any, but, see later;-) is __new__ and works completely differently again). While constructing all superclasses (and, no doubt, doing ...
How to install GCC piece by piece with GMP, MPFR, MPC, ELF, without shared libraries?
...mpiler Collection) piece by piece, using the current version,
using the correct versions of dependencies, not using a package manager (like yum, rpm, apt, dpkg), and not using shared libraries?
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How do I find all files containing specific text on Linux?
I'm trying to find a way to scan my entire Linux system for all files containing a specific string of text. Just to clarify, I'm looking for text within the file, not in the file name.
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How to prevent favicon.ico requests?
I don't have a favicon.ico, but my browser always makes a request for it.
11 Answers
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Conversion from Long to Double in Java
Is there any way to convert a Long data type to Double or double ?
8 Answers
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Get a UTC timestamp [duplicate]
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new Date().getTime();
For more information, see @James McMahon's answer.
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【转】用App Inventor 2实现电子围栏功能 - App应用开发 - 清泛IT社区，为创新赋能！
...相对复杂的部分，因此独立一章详细说明。
App Inventor自带地图组件，可以方便的实现电子围栏（地理围栏，Geofence）功能。
实现电子围栏需要的组件实现电子围栏需要用到地图Map容器，需要用到的组件有Map，类似画面，...
What values should I use for CFBundleVersion and CFBundleShortVersionString?
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Think of it this way: The "short version" (CFBundleShortVersionString) is the public version number. The "version" (CFBundleVersion) is more of an internal version number that could change far more frequently than the public "short version". Personally I...
Swift and mutating struct
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The mutability attribute is marked on a storage (constant or variable), not a type. You can think struct has two modes: mutable and immutable. If you assign a struct value to an immutable storage (we call it let or constant in Swift) the value becomes immutable mode...
What does the 'static' keyword do in a class?
...static field exists[1] even if you create a million instances of the class or you don't create any. It will be shared by all instances.
Since static methods also do not belong to a specific instance, they can't refer to instance members. In the example given, main does not know which instance of th...