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Does using final for variables in Java improve garbage collection?
...to a "young generation" and an "old generation". All objects are initially allocated in the young generation (sometimes referred to as "the nursery"). Since most objects are short-lived, the GC is more aggressive about freeing recent garbage from the young generation. If an object survives a collect...
std::back_inserter for a std::set?
...h it makes sense. My current interest is for exercising generic container allocators such as @HowardHinnant 's short_alloc.
– Don Hatch
Apr 6 at 8:35
...
How do I change the color of the text in a UIPickerView under iOS 7?
... title";
NSAttributedString *attString =
[[NSAttributedString alloc] initWithString:title attributes:@{NSForegroundColorAttributeName:[UIColor whiteColor]}];
return attString;
}
If you want to change the selection bar colors as well, I found that I had to add 2 separate UIViews t...
Xcode iOS 8 Keyboard types not supported
...eds a "Done" button
UIBarButtonItem *doneBarButton = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self
...
NSString property: copy or retain?
...Name = [NSMutableString stringWithString:@"Chris"];
Person *p = [[[Person alloc] init] autorelease];
p.name = someName;
[someName setString:@"Debajit"];
The current value of the Person.name property will be different depending on whether the property is declared retain or copy — it will be @"D...
How to delete all Annotations on a MKMapView
...tion = [mapView userLocation];
NSMutableArray *pins = [[NSMutableArray alloc] initWithArray:[mapView annotations]];
if ( userLocation != nil ) {
[pins removeObject:userLocation]; // avoid removing user location off the map
}
[mapView removeAnnotations:pins];
[pins releas...
What and When to use Tuple? [duplicate]
...know about the Tuple type. Tuple is a class, not a struct. It thus will be allocated upon the managed heap. Each class instance that is allocated adds to the burden of garbage collection.
Note:
The properties Item1, Item2, and further do not have setters. You cannot assign them. The Tuple is immuta...
How to replace part of string by position?
.... The StringBuilder approach avoid this extra cost by working within a pre-allocated section of memory and moving chars round within it.
– redcalx
Apr 17 '18 at 15:52
...
How can I make Jenkins CI with Git trigger on pushes to master?
.../yourserver/jenkins/git/notifyCommit?url=<URL of the Git repository>?token=<get token from git to build remotely>
This will trigger all builds that poll the specified Git repository.
However, polling actually checks whether anything has been pushed to the used branch.
It works perfect...
How can I include raw JSON in an object using Jackson?
...
@Sid there is no way to do that AND tokenization both efficiently. To support pass-through of unprocessed tokens would require additional state-keeping, which makes "regular" parsing somewhat less efficient. It is sort of like optimization between regular code ...