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Center a column using Twitter Bootstrap 3

...ach uses Bootstrap's own offset classes so it requires no change in markup and no extra CSS. The key is to set an offset equal to half of the remaining size of the row. So for example, a column of size 2 would be centered by adding an offset of 5, that's (12-2)/2. In markup this would look like: &...
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Is there a practical use for weak references? [duplicate]

...ta. It can also be used to keep information about objects used else where and you don't know when those objects are discarded. BTW Soft References are like Weak references, but they will not always be cleaned up immediately. The GC will always discard weak references when it can and retain Soft R...
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Detecting touch screen devices with Javascript

... +1 for doing hover and click both. One other way could be using CSS media queries and using some styles only for smaller screens / mobile devices, which are the ones most likely to have touch / tap functionality. So if you have some specific st...
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How to unmount a busy device

...s daily. I already have code to recognize shared drives (from a SQL table) and mount them in a special directory where all users can access them. ...
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Asynctask vs Thread in android

...PU-intensive tasks, there are basically two ways to do this: Java threads, and Android's native AsyncTask. Neither one is necessarily better than the other, but knowing when to use each call is essential to leveraging the system's performance to your benefit. Use AsyncTask for: Simple network op...
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How to return result of a SELECT inside a function in PostgreSQL?

...ple. But note the potential naming conflict between the OUT parameter cnt and the column alias of the same name. In this particular case (RETURN QUERY SELECT ...) Postgres uses the column alias over the OUT parameter either way. This can be ambiguous in other contexts, though. There are various way...
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Intellij code formatting, Java annotations on new lines

I'm using IntelliJ 12 and It's putting my member variable annotations on the same line, which i hate! How do I setup the code formatter to keep annotations on separate lines? ...
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How to check if a string starts with a specified string? [duplicate]

...t another protocol. I'd use http:// instead, since https would also match, and other things such as http-protocol.com. substr( $string_n, 0, 7 ) === "http://" And in general: substr($string, 0, strlen($query)) === $query ...
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insert multiple rows via a php array into mysql

I'm passing a large dataset into a MySQL table via PHP using insert commands and I'm wondering if its possible to insert approximately 1000 rows at a time via a query other than appending each value on the end of a mile long string and then executing it. I am using the CodeIgniter framework so its f...
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How to clone ArrayList and also clone its contents?

How can I clone an ArrayList and also clone its items in Java? 21 Answers 21 ...