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Practical uses for AtomicInteger
...ementAndGet(), etc) that can be used by many threads concurrently
As a primitive that supports compare-and-swap instruction (compareAndSet()) to implement non-blocking algorithms.
Here is an example of non-blocking random number generator from Brian Göetz's Java Concurrency In Practice:
public c...
What is the reason for a red exclamation mark next to my project in Eclipse?
... Problems view (try Window->Show View) which shows this kind of thing.
It's usually missing Jars (eg your project configuration references a jar that isn't there), and that kind of thing, in the case of JDT, but obviously these days Eclipse can be used in so many ways, it could be anything.
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Setting an int to Infinity in C++
I have an int a that needs to be equal to "infinity". This means that if
6 Answers
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Django CharField vs TextField
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It's a difference between RDBMS's varchar (or similar) — those are usually specified with a maximum length, and might be more efficient in terms of performance or storage — and text (or similar) types — those are usuall...
How to set JFrame to appear centered, regardless of monitor resolution? [closed]
While working with Java, I find it hard to position my main window in the center of the screen when I start the application.
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Javascript infamous Loop issue? [duplicate]
...nd that's what the inner function 'sees'.
In the second example, for each iteration step the outer function literal will evaluate to a new function object with its own scope and local variable num, whose value is set to the current value of i. As num is never modified, it will stay constant over th...
Explode PHP string by new line
...roblems when moving from one system to another when you use the constants with data stored on another system. The new system's constants might be different from the previous system's and the stored data might not work anymore. So completely parse your data before storing it to remove any system depe...
How to deploy correctly when using Composer's develop / production switch?
...oject is started: composer.phar install --dev, json and lock files are commited to VCS.
Other developers start working on the project: checkout of VCS and composer.phar install --dev.
A developer adds dependancies: composer.phar require <package>, add --dev if you want the package in the requi...
How to Test Facebook Connect Locally
...and Facebook Connect APIs. but when I run the app and press Connect button it's return to the Website not to the test local server which is ( http://localhost:xxxx/test.aspx )
So how I can test Facebook locally (i.e How I can change the callback url) ?
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Getting an object from an NSSet
If you can't get an object with objectAtIndex: from an NSSet then how do you retrieve objects?
8 Answers
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