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How do I check if a string is a number (float)?

...r. I'm not sure that anything much could be faster than the above. It calls the function and returns. Try/Catch doesn't introduce much overhead because the most common exception is caught without an extensive search of stack frames. The issue is that any numeric conversion function has two kin...
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Converting from longitude\latitude to Cartesian coordinates

...'re talking about a distance of a few feet and even then there is theoretically curvature of the Earth... If you require more rigidly WGS-84 compatible approach checkout the "Vincenty Formula." I understand where starblue is coming from, but good software engineering is often about trade offs, so ...
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How do I get the SharedPreferences from a PreferenceActivity in Android?

... this, Android provides a simple set of APIs. Preferences are typically name value pairs. They can be stored as “Shared Preferences” across various activities in an application (note currently it cannot be shared across processes). Or it can be something that needs to be stored spe...
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git pull aborted with error filename too long

...ates, looks like there is some additional script you need to run after installing mysysgit github.com/msysgit/git/pull/122#issuecomment-43653756 – Adam Grant Aug 1 '14 at 18:36 18 ...
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Converting string to byte array in C#

... Apr 18 '13 at 0:54 Timothy RandallTimothy Randall 13.7k11 gold badge1212 silver badges2727 bronze badges ...
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Difference between JSONObject and JSONArray

...en dealing with JSON that begins with curly braces. A JSON object is typically used to contain key/value pairs related to one item. For example: {"name": "item1", "description":"a JSON object"} Of course, JSON arrays and objects may be nested inside one another. One common example of this is an A...
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Getting attributes of a class

...gt;> inspect.getmembers(MyClass, lambda a:not(inspect.isroutine(a))) [('__class__', type), ('__dict__', <dictproxy {'__dict__': <attribute '__dict__' of 'MyClass' objects>, '__doc__': None, '__module__': '__main__', '__weakref__': <attribute '__weakref__' of 'MyClass' obje...
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What's an easy way to read random line from a file in Unix command line?

... You can use shuf: shuf -n 1 $FILE There is also a utility called rl. In Debian it's in the randomize-lines package that does exactly what you want, though not available in all distros. On its home page it actually recommends the use of shuf instead (which didn't exist when it was cr...
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How to change current Theme at runtime in Android [duplicate]

I've created a PreferenceActivity that allows the user to choose the theme he wants to apply to the entire application. 13 ...
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iPhone - Get Position of UIView within entire UIWindow

...If your superView did not have a superView your view should not be seen at all – user4951 Mar 19 '13 at 3:41 17 ...