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Returning value from Thread
...allable like this:
public void test() throws InterruptedException, ExecutionException
{
ExecutorService executor = Executors.newSingleThreadExecutor();
Callable<Integer> callable = new Callable<Integer>() {
@Override
public Integer call() {
return ...
When should I use mmap for file access?
...ves in the mmap'd region (this is what the MAP_HASSEMAPHORE flag is for).
One place mmap can be awkward is if you need to work with very large files on a 32 bit machine. This is because mmap has to find a contiguous block of addresses in your process's address space that is large enough to fit the...
How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
...
I don't belive there's a way to do it within one query, but you can play tricks like this with a temporary variable:
declare @s varchar(max)
set @s = ''
select @s = @s + City + ',' from Locations
select @s
It's definitely less code than walking over a cursor, and pr...
Need a simple explanation of the inject method
...rain is not registering how the number 10 can become the result. Would someone mind explaining what's happening here?
16 An...
registerForRemoteNotificationTypes: is not supported in iOS 8.0 and later
...e 6, then you will need to use conditional compiling as follows:
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 80000
if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
// use registerUserNotificationSettings
} else {
// use registerForRemoteNotificationTypes:
}...
Position of least significant bit that is set
... It's certainly code compact, and the (v & -v) trick is something everyone should learn and remember.
– Adam Davis
Apr 16 '09 at 17:52
2
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Do I need to explicitly call the base virtual destructor?
...
@YuanWen no it won't, the (one and only) derived destructor always overrides its base class's (one and only) destructor.
– boycy
Aug 30 '16 at 11:08
...
Create instance of generic type whose constructor requires a parameter?
...he baseclass (BaseFruit) I know it will have a constructor. But indeed, if one day I decide basefruit needs more parameters, I could be screwed. Will look into the ACtivator class though. Didn't hear of it before.
– Boris Callens
Apr 9 '09 at 11:29
...
How to check sbt version?
...bal-plugins...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Loading project definition from /Users/jacek/oss/scalania/project
[info] Set current project to scalania (in build file:/Users/jacek/oss/scalania/)
[info] exercises/*:sbtVersion
[info] 0.13.1-RC5
[info] ...
CSS3 selector :first-of-type with class name?
...
No, it's not possible using just one selector. The :first-of-type pseudo-class selects the first element of its type (div, p, etc). Using a class selector (or a type selector) with that pseudo-class means to select an element if it has the given class (or is...