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How can I check if multiplying two numbers in Java will cause an overflow?

I want to handle the special case where multiplying two numbers together causes an overflow. The code looks something like this: ...
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CSS selector for first element with class

... This is one of the most well-known examples of authors misunderstanding how :first-child works. Introduced in CSS2, the :first-child pseudo-class represents the very first child of its parent. That's it. There's a very common misconception that it picks up whichever child element is the fi...
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How do you determine what technology a website is built on? [closed]

Quite often I come across a nice looking or functional website, and wonder what technology was used to create it. What techniques are available to figure out what a particular website was built with? ...
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Can Git hook scripts be managed along with the repository?

...hooks/ . However, those scripts are not propagated when people do a clone and they are not version controlled. 11 Answer...
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How to paste text to end of every line? Sublime 2

...ous if there is a way to paste text to the end of every line in Sublime 2? And conversely, to the beginning of every line. ...
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How to implode array with key and value without foreach in PHP

... and another way: $input = array( 'item1' => 'object1', 'item2' => 'object2', 'item-n' => 'object-n' ); $output = implode(', ', array_map( function ($v, $k) { if(is_array($v)){ ...
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Why do x86-64 systems have only a 48 bit virtual address space?

...st only use the lower 48 bits. The alternative was wasting transistors on handling a bigger address space which wasn't going to be needed for many years. So once we get near the 48-bit limit, it's just a matter of releasing CPUs that handle the full address space, but it won't require any changes t...
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Could not instantiate class named MKMapView

I may be doing something really stupid here as I've done it before and it worked and now... 9 Answers ...
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How to amend several commits in Git to change author

I have made a series of commits in Git and I realise now that I forgot to set my user name and user email properties correctly (new machine). I have not yet pushed these commits to my repository, so how can I correct these commits before I do so (only the 3 latest commits on the master branch)? ...
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difference between iframe, embed and object elements

...ame> The iframe element represents a nested browsing context. HTML 5 standard - "The <iframe> element" Primarily used to include resources from other domains or subdomains but can be used to include content from the same domain as well. The <iframe>'s strength is that the embedded c...