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check android application is in foreground or not? [duplicate]
...f answers for this question.But it's all about single activity..How to check whether the whole app is running in foreground or not ?
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Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
...f_t arguments, Visual C++ for instance use %Iu and %Id respectively, I think that gcc will allow you to use %zu and %zd.
You could create a macro:
#if defined(_MSC_VER) || defined(__MINGW32__) //__MINGW32__ should goes before __GNUC__
#define JL_SIZE_T_SPECIFIER "%Iu"
#define JL_SSIZE_T_SPE...
What is the difference between Java RMI and RPC?
...ed into a server, in RMI you can have references to remote objects and invoke their methods, and also pass and return more remote object references that can be distributed among many JVM instances, so it's much more powerful.
RMI stands out when the need to develop something more complex than a pur...
How to get visitor's location (i.e. country) using geolocation? [duplicate]
...u don't need to locate the user if you only need their country. You can look their IP address up in any IP-to-location service (like maxmind, ipregistry or ip2location). This will be accurate most of the time.
If you really need to get their location, you can get their lat/lng with that method, the...
How to export collection to CSV in MongoDB?
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@karoly-horvath has it right. Fields are required for csv.
According to this bug in the MongoDB issue tracker https://jira.mongodb.org/browse/SERVER-4224 you MUST provide the fields when exporting to a csv. The docs are not c...
Iterate through object properties
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Iterating over properties requires this additional hasOwnProperty check:
for (var prop in obj) {
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
// do stuff
}
}
It's necessary because an object's prototype contains additional properties for the object which are techni...
How do I make a JAR from a .java file?
...build directory and do a
jar cvf YourJar.jar *
For adding manifest check jar command line switches
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Retrieve specific commit from a remote Git repository
... cloning the full repo) is actually possible.
See commit 68ee628 by Fredrik Medley (moroten), 21 May 2015.
(Merged by Junio C Hamano -- gitster -- in commit a9d3493, 01 Jun 2015)
You now have a new config (on the server side)
uploadpack.allowReachableSHA1InWant
Allow upload-pack to accept ...
bool operator ++ and --
...ring overflow).
However, it's impossible to predict the result of -- given knowledge only of the truth value of x, as it could result in false (if the integral value is 1) or true (if the integral value is anything else - notably this includes 0 [false] and 2 or more [true]).
So as a short-hand ++ w...
Set type for function parameters?
Is there a way to let a javascript function know that a certain parameter is of a certain type?
12 Answers
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