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What does 'synchronized' mean?
...oo, or worse, it may only be half changed. This would not be what you logically expect.
Again, this is a non-trivial topic in Java. To learn more, explore topics here on SO and the Interwebs about:
Concurrency
Java Memory Model
Keep exploring these topics until the name "Brian Goetz" becomes...
AngularJS ui-router login authentication
... at this plunk.
First, you need a service to store the user's identity. I call this principal. It can be checked to see if the user is logged in, and upon request, it can resolve an object that represents the essential information about the user's identity. This can be whatever you need, but the es...
lsof survival guide [closed]
...th -c
lsof -c syslog-ng
The -p switch lets you see what a given process ID has open, which is good for learning more about unknown processes:
lsof -p 10075
The -t option returns just a PID
lsof -t -c Mail
Using the -t and -c options together you can HUP processes
kill -HUP $(lsof -t -c ssh...
Reference - What does this error mean in PHP?
...em. (Note: You might have multiple blocks if you had code that was automatically constructed)
Also make sure you don't have any Byte Order Marks in your code, for example when the encoding of the script is UTF-8 with BOM.
Related Questions:
Headers already sent by PHP
All PHP "Headers already se...
What is %2C in a URL?
...i want to order by two fields means in my link it will come like
order_by=id%2Cname which is equal to order_by=id,name .
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Change the mouse cursor on mouse over to anchor-like style
...
Assuming your div has an id="myDiv", add the following to your CSS. The cursor: pointer specifies that the cursor should be the same hand icon that is use for anchors (hyperlinks):
CSS to Add
#myDiv
{
cursor: pointer;
}
You can simply add the...
How to free memory in Java?
...anagement whitepaper (PDF) may help explain what's going on.
You can also call System.gc() to suggest that the garbage collector run immediately. However, the Java Runtime makes the final decision, not your code.
According to the Java documentation,
Calling the gc method suggests that
the ...
Can you remove elements from a std::list while iterating through it?
...and the i is incremented before the semi-colon, not necessarily before the call to erase(). "iterator prev = i++; erase(prev);" is sure to work, as is use the return value
– James Curran
Feb 27 '09 at 20:03
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php implode (101) with quotes
...
$ids = sprintf("'%s'", implode("','", $ids ) );
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How do I get the current line number?
...ler to do this work for you, by writing a utility method that uses the new caller attributes:
using System.Runtime.CompilerServices;
static void SomeMethodSomewhere()
{
ShowMessage("Boo");
}
...
static void ShowMessage(string message,
[CallerLineNumber] int lineNumber = 0,
[CallerMember...