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Extract source code from .jar file
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Use JD GUI. Open the application, drag and drop your JAR file into it.
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Using a strategy pattern and a command pattern
Both design patterns encapsulate an algorithm and decouple implementation details from their calling classes. The only difference I can discern is that the Strategy pattern takes in parameters for execution, while the Command pattern doesn't.
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Understanding garbage collection in .NET
...ns because you are using a debugger. You'll need to run your code the way it runs on your user's machine. Switch to the Release build first with Build + Configuration manager, change the "Active solution configuration" combo in the upper left corner to "Release". Next, go into Tools + Options, De...
Explain “claims-based authentication” to a 5-year-old
...ix has a pretty good answer, but to step away from the technical aspect of it:
Claims Based Authentication is about defining who you trust to give you accurate information about identity, and only ever using that information provided. My (the) go-to example is at a bar. Imagine for a moment that ...
RuntimeException: Unable to instantiate application
...-install .apk file and trying to reuse or recycle the previous opened activity/view from the same package (if you haven't closed the previous installed app yet). It has nothing to do with your app, moreover, it is very unlikely that your app will get freezed or crashed cause by this verbose error me...
What are the differences between struct and class in C++?
...ween class and struct is defined in (11.2):
Member of a class defined with the
keyword class are private by
default. Members of a class defined
with the keywords struct or union
are public by default.
Additional difference: the keyword class can be used to declare template parameters, ...
What is the preferred syntax for defining enums in JavaScript?
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Since 1.8.5 it's possible to seal and freeze the object, so define the above as:
const DaysEnum = Object.freeze({"monday":1, "tuesday":2, "wednesday":3, ...})
or
const DaysEnum = {"monday":1, "tuesday":2, "wednesday":3, ...}
Object.free...
Is object empty? [duplicate]
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I'm assuming that by empty you mean "has no properties of its own".
// Speed up calls to hasOwnProperty
var hasOwnProperty = Object.prototype.hasOwnProperty;
function isEmpty(obj) {
// null and undefined are "empty"
if (obj == null) return true;
// Assume if it has a...
When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
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static_cast is the first cast you should attempt to use. It does things like implicit conversions between types (such as int to float, or pointer to void*), and it can also call explicit conversion functions (or implicit ones). In many cases, explicitly stating static_cast isn't ne...
What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
So the reason for typedef :ed primitive data types is to abstract the low-level representation and make it easier to comprehend ( uint64_t instead of long long type, which is 8 bytes).
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