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Why does sun.misc.Unsafe exist, and how can it be used in the real world?

...NI calls into native code that contains special instructions for CAS read more about CAS here http://en.wikipedia.org/wiki/Compare-and-swap The sun.misc.Unsafe functionality of the host VM can be used to allocate uninitialized objects and then interpret the constructor invocation as any other metho...
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How do I make a redirect in PHP?

...1 : 302); exit(); } Redirect('http://example.com/', false); This is more flexible: function redirect($url, $statusCode = 303) { header('Location: ' . $url, true, $statusCode); die(); } 6. Workaround As mentioned header() redirects only work before anything is written out. They usually ...
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Eclipse Workspaces: What for and why?

...h workspace A (and were appearing in the Project Explorer) won't appear anymore and projects associated with workspace B will now appear. So it seems that a project, to be open in Eclipse, MUST be associated to a workspace. Notice that this doesn't mean that the project source code must be inside th...
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What's the Hi/Lo algorithm?

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How do I get the object if it exists, or None if it does not exist?

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How can I bind to the change event of a textarea in jQuery?

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Is it possible to solve the “A generic array of T is created for a varargs parameter” compiler warni

...g @SuppressWarnings("unchecked"), I don't think so. This bug report has more information but it boils down to the compiler not liking arrays of generic types. share | improve this answer ...
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What is a NullReferenceException, and how do I fix it?

... or shorter if (a != null) { b = a; }. The rest of this article goes into more detail and shows mistakes that many programmers often make which can lead to a NullReferenceException. More Specifically The runtime throwing a NullReferenceException always means the same thing: you are trying to use a ...
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What are best practices for validating email addresses on iOS 2.0

... There's a more complete regex at cocoawithlove.com/2009/06/… that can be used instead of this simple one. – Tomas Andrle Sep 1 '10 at 22:49 ...
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What is the best way to convert an array to a hash in Ruby

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