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Do I need to close() both FileReader and BufferedReader?
...critical it is that you don't deprive the OS of resources it might want to allocate to other programs.
The Closeable interface can be used if a wrapper constructor is likely to fail in Java 5 or 6:
Reader reader = new FileReader(fileName);
Closeable resource = reader;
try {
BufferedReader buffer...
When converting a project to use ARC what does “switch case is in protected scope” mean?
...itch and the compiler can't tell if there's a clear path to the required dealloc point.
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What does “exec sp_reset_connection” mean in Sql Server Profiler? [duplicate]
...ocks any buffer resources
that are used by the connection
Releases all allocated memory
owned by the connection
Clears any work or temporary
tables that are created by the
connection
Kills all global cursors owned by the
connection
Closes any open SQL-XML handles that are open
D...
HashMap and int as key
...
@Snake SparseArray If you allocate a bunch of memory boxing and unboxing ints as you would with a HashMap, the vm will need to pause execution for garbage collection sooner. This is important if you are trying to do something frequently and quickly.
...
How to make URL/Phone-clickable UILabel?
...e:UIFontTextStyleHeadline]};
_label.attributedText = [[NSAttributedString alloc]initWithString:string attributes:attributes];
[_label setFont:[_label.font fontWithSize:13.0]];
[_label setLinkForSubstring:@"Terms of Use" withLinkHandler:^(FRHyperLabel *label, NSString *substring){
[[UIApplicati...
How can I give the Intellij compiler more heap space?
...
In my case the error was caused by the insufficient memory allocated to the "test" lifecycle of maven. It was fixed by adding <argLine>-Xms3512m -Xmx3512m</argLine> to:
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven....
原子vector的一种实现源码(atomic-vector) - C/C++ - 清泛网 - 专注C/C++及内核技术
...e size of an AtomicVector is with the ensureSize
* method. It does not reallocate the internal storage to grow; it allocates a
* new AtomicVector and chains to that for increased capacity. This means that
* if the initial size is too low, reading and modifying elements at high
* indexes will...
Store a closure as a variable in Swift
...eComplete) onHideComplete ();
}
@end
PopupView * popupView = [[PopupView alloc] init]
popupView.onHideComplete = ^() {
...
}
Swift
class PopupView: UIView {
var onHideComplete: (() -> Void)?
@IBAction func hideButtonDidTouch(sender: AnyObject) {
// Do something
....
Maximum number of threads in a .NET app?
...ctually reserve stack space (as we could expect). Non started threads only allocate the information required by a thread object (you can use reflector if interested in the actual members).
You can actually test it for yourself, compare:
static void DummyCall()
{
Thread.Sleep(100000...
iOS app, programmatically get build version
...o;
uname(&systemInfo);
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
NSDate *date = [NSDate date];
[formatter setDateFormat:@"MM/dd/yyyy 'at' hh:mm a"];
NSString *dateString = [formatter stringFromDate:date];
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenWi...