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Is it a good practice to use try-except-else in Python?
...ent in some of the "look-before-you-leap" constructs. For example, testing os.path.exists results in information that may be out-of-date by the time you use it. Likewise, Queue.full returns information that may be stale. The try-except-else style will produce more reliable code in these cases.
...
One Activity and all other Fragments [closed]
...use the the publicly available android-support-v4-googlemaps.
Ultimately most the devs I know that went the one Activity route have gone back to multiple Activities to simplify their code. UI wise, on a tablet, you are some times stuck using a single Activity just to achieve what ever crazy intera...
How to correctly save instance state of Fragments in back stack?
... in back stack? That's what the OP asked.
– hitmaneidos
Nov 5 '14 at 16:05
53
This is not related...
What is the basic difference between the Factory and Abstract Factory Design Patterns? [closed]
...through inheritance where the Abstract Factory creates objects through composition.
The Abstract Factory Pattern consists of an AbstractFactory, ConcreteFactory, AbstractProduct, ConcreteProduct and Client.
How to implement
The Abstract Factory Pattern can be implemented using the Factory Method Pat...
Is Disney's FastPass Valid and/or Useful Queue Theory
...isney Experience" becomes equivalent to standing in lines forever, Disney loses. Even if you don't spend a nickel while holding the FastPass, Disney and you both still win.
– Cheeso
Jun 11 '09 at 21:51
...
Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
I came across Xamarin claims that their Mono implementation on Android and their C# compiled apps are faster than Java code. Did anyone perform actual benchmarks on very similar Java and C# code on different Android platforms to verify such claims, could post the code and results?
...
Is gcc's __attribute__((packed)) / #pragma pack unsafe?
... lay out members of a struct in the order in which they're declared, with possible padding bytes inserted between members, or after the last member, to ensure that each member is aligned properly.
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What is the difference between a framework and a library?
...ifferent things depending the context they are used.
For example, on Mac OS X frameworks are just libraries, packed into a bundle. Within the bundle you will find an actual dynamic library (libWhatever.dylib). The difference between a bare library and the framework on Mac is that a framework can c...
What are the differences between various threading synchronization options in C#?
..., that can be used to activate and suspend threads.
Mutex, Semaphores are OS-level concepts. e.g with a named mutex you could synchronize across multiple (managed) exes (ensuring that only one instance of your application is running on the machine.)
Mutex:
Unlike monitors, however, a mutex ca...
How do you use bcrypt for hashing passwords in PHP?
...RjrwAVXD98HNOgsNpDczlqm3Jq7KnEd1rVAGv3Fykk1a
// Usage 2:
$options = [
'cost' => 11
];
echo password_hash('rasmuslerdorf', PASSWORD_BCRYPT, $options)."\n";
// $2y$11$6DP.V0nO7YI3iSki4qog6OQI5eiO6Jnjsqg7vdnb.JgGIsxniOn4C
To verify a user provided password against an existing hash, you may use ...