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What really happens in a try { return x; } finally { x = null; } statement?
... statement is executed, but the return value isn't affected. The execution order is:
Code before return statement is executed
Expression in return statement is evaluated
finally block is executed
Result evaluated in step 2 is returned
Here's a short program to demonstrate:
using System;
class ...
iOS app, programmatically get build version
... able to detect when the user has updated the app through the AppStore, in order to execute some code for adjustments
7 Ans...
Android: How can I pass parameters to AsyncTask's onPreExecute()?
... ....
}
2) Passing methods to async-task
In order to avoid coding the async-Task infrastructure (thread, messagenhandler, ...) multiple times you might consider to pass the methods which should be executed in your async-task as a parameter. Following example outlines t...
How do I close a connection early?
...ogle.com');
ob_end_flush();flush();//really send content, can't change the order:1.ob buffer to normal buffer, 2.normal buffer to output
//continue do something on server side
ob_start();
sleep(5);//the user won't wait for the 5 seconds
echo 'for diyism';//user can't see this
file_put_contents('/tm...
What is the difference between const int*, const int * const, and int const *?
...ever, to me it seems kind of backwards to avoid a nice language feature in order to keep using an exceptional syntactical rule (about "const" placement), rather than avoiding using the exceptional syntactic rule so you can safely make use of this language feature.
– T.E.D.
...
Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]
...ntain. Bash requires the imposition of good practices learned elsewhere in order to be maintainable. In so doing, and using a GUI dialog utility or Python for UI, gives superior performance (via extremely fast utility programs called from Bash) as well as a good UX.
– DocSalvag...
How to get a substring between two strings in PHP?
...W, your "Sample use" paragraph is wrong. Arguments are in a totally wrong order.
– that-ben
Aug 1 '18 at 14:28
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How to make a class property? [duplicate]
... base classes of type(a) excluding metaclasses.
So the method resolution order doesn't include our class properties (or anything else defined in the metaclass). It is possible to make a subclass of the built-in property decorator that behaves differently, but (citation needed) I've gotten the impr...
How to detect when cancel is clicked on file input?
...capture="camera" />
<input type="file" accept="video/*" capture="camcorder" />
This works out actually a lot better than I expected. It runs 10 trials by requesting a timer to be invoked in 25 milliseconds. It then measures how long it actually took to invoke, and if the average of 10 tri...
Maven – Always download sources and javadocs
...n my case the "settings.xml" solution didn't work so I use this command in order to download all the sources:
mvn dependency:sources
You also can use it with other maven commands, for example:
mvn clean install dependency:sources -Dmaven.test.skip=true
To download all documentation, use the fo...