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static allocation in java - heap, stack and permanent generation
I have been lately reading a lot on memory allocation schemes in java, and there have been many doubts as I have been reading from various sources. I have collected my concepts, and I would request to go through all of the points and comment on them. I came to know that memory allocation is JVM spec...
Must qualify the allocation with an enclosing instance of type GeoLocation
...No enclosing instance of type StackArrList is accessible. Must qualify the allocation with an enclosing instance of type StackArrList (e.g. x.new A() where x is an instance of StackArrList). and will not allow to make instance of Stack class
When you make the class Stack to static class Stack will ...
diff to output only the file names
...n --out-format="%n" old/ new/
yields the following output:
VERSION
doku.php
conf/mime.conf
inc/auth.php
inc/lang/no/lang.php
lib/plugins/acl/remote.php
lib/plugins/authplain/auth.php
lib/plugins/usermanager/admin.php
Running rsync only in one direction misses the newly created files and the oth...
JavaScript equivalent of PHP's in_array()
... notice you wanted to see if an array was inside another. According to the PHP documentation this is the expected behavior of PHP's in_array:
$a = array(array('p', 'h'), array('p', 'r'), 'o');
if (in_array(array('p', 'h'), $a)) {
echo "'ph' was found\n";
}
if (in_array(array('f', 'i'), $a)) {...
What is the difference between “instantiated” and “initialized”?
...ble is initialized with a value. An object is instantiated when memory is allocated for it and it's constructor has been run.
For instance here is a variable:
Dim obj as Object
This variable has not been initialized. Once I assign a value to the obj variable, the variable will be initialized. ...
PHP substring extraction. Get the string before the first '/' or the whole string
I am trying to extract a substring. I need some help with doing it in PHP.
15 Answers
...
How to sort a NSArray alphabetically?
...l.selectedSegmentIndex)
{case 0:
sorter=[[NSSortDescriptor alloc]initWithKey:@"Name" ascending:YES];
break;
case 1:
sorter=[[NSSortDescriptor alloc]initWithKey:@"Age" ascending:YES];
default:
break; }
NSArray *sortdiscriptor...
Pointers, smart pointers or shared pointers? [duplicate]
...assume you meant scoped pointer which uses the RAII pattern. It is a stack-allocated object that wraps a pointer; when it goes out of scope, it calls delete on the pointer it wraps. It "owns" the contained pointer in that it is in charge of deleteing it at some point. They allow you to get a raw ref...
Do AJAX requests retain PHP Session info?
...
If PHP error reporting is turned on, you can get a session error returned with the AJAX response. I've been intermittently getting a Warning: session_write_close(): Failed to write session data (user) error lately in a project, ...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，网页等等
<UIWebViewDelegate>
UIWebView *webView = [[UIWebView alloc]initWithFrame:self.view.bounds];
webView.delegate = self;
webView.scalesPageToFit = YES;
webView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
[webView setAllowsInlineMediaPl...