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Static nested class in Java, why?

...ike any other top-level class. In effect, a static nested class is behaviorally a top-level class that has been nested in another top-level class for packaging convenience. There is no need for LinkedList.Entry to be top-level class as it is only used by LinkedList (there are some other interface...
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Can I protect against SQL injection by escaping single-quote and surrounding user input with single-

... First of all, it's just bad practice. Input validation is always necessary, but it's also always iffy. Worse yet, blacklist validation is always problematic, it's much better to explicitly and strictly define what values/formats you a...
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How to set default value for form field in Symfony2?

..., it will also always force the value under any context. Not what I would call a "default value"... – Hubert Perron Apr 3 '13 at 18:25 4 ...
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Converting from IEnumerable to List [duplicate]

...to a Generic List. //ArrayList Implements IEnumerable interface ArrayList _provinces = new System.Collections.ArrayList(); _provinces.Add("Western"); _provinces.Add("Eastern"); List<string> provinces = _provinces.Cast<string>().ToList(); If you're using Generic version IEnumerable&...
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Why is it not advisable to have the database and web server on the same machine?

...dicated network connection between the two, more maintenance, etc.), especially for a small application, where neither piece is using too much CPU or memory? Even with two servers, with one server compromised, an attacker could still do serious damage, either by deleting the database, or messing wi...
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Insert line break inside placeholder attribute of a textarea?

...eed it doesn't. I just tried it in FF and it prints out the 
 literally, without producing a whitespace character. See developer.mozilla.org/en/HTML/HTML5/… – Merlyn Morgan-Graham Jan 11 '15 at 12:46 ...
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How to check what version of jQuery is loaded?

... containing the version number. If you get back a version number -- usually as a string -- then jQuery is loaded and that is what version you're working with. If not loaded then you should get back undefined or maybe even an error. Pretty old question and I've seen a few people that have alrea...
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How to read a file without newlines?

In Python, calling 9 Answers 9 ...
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ValueError: setting an array element with a sequence

...9 when building an array of objects (not necessarily lists) that implement __getitem__ as specified here:github.com/numpy/numpy/issues/5100 – dashesy Nov 21 '14 at 19:13 add a...
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Can I use assert on Android devices?

...t. You can do import static junit.framework.Assert.*; now you can use all the functions like assertTrue, assertEquals, assertNull that are provided in the junit framework. Be careful not to import the Junit4 framework through eclipse, that would be the org.junit package. You have to use the j...