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RESTful Authentication via Spring

...(user/pass combo) with each request is not desirable. Per REST guidelines (and internal business requirements), the server must remain stateless. The API will be consumed by another server in a mashup-style approach. ...
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Where is the Keytool application?

I need to use mapview control in android and I can't seem to understand how to run keytool . Is it installed with eclipse? I can't seem to find a download link. ...
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How to select a radio button by default? [duplicate]

I have some radio buttons and I want one of them to be set as selected by default when the page is loaded. How can I do that? ...
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Is arr.__len__() the preferred way to get the length of an array in Python?

...5 The same works for tuples: my_tuple = (1,2,3,4,5) len(my_tuple) # 5 And strings, which are really just arrays of characters: my_string = 'hello world' len(my_string) # 11 It was intentionally done this way so that lists, tuples and other container types or iterables didn't all need to expl...
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How do I convert CamelCase into human-readable names in Java?

...e(test) + "]"); } It uses zero-length matching regex with lookbehind and lookforward to find where to insert spaces. Basically there are 3 patterns, and I use String.format to put them together to make it more readable. The three patterns are: UC behind me, UC followed by LC in front of me ...
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Property getters and setters

... Setters and Getters apply to computed properties; such properties do not have storage in the instance - the value from the getter is meant to be computed from other instance properties. In your case, there is no x to be assigned. E...
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Is there a way to get the git root directory in one command?

...Yes: git rev-parse --show-toplevel If you want to replicate the Git command more directly, you can create an alias: git config --global alias.root 'rev-parse --show-toplevel' and now git root will function just as hg root. Note: In a submodule this will display the root directory of the sub...
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Apply multiple functions to multiple groupby columns

... The second half of the currently accepted answer is outdated and has two deprecations. First and most important, you can no longer pass a dictionary of dictionaries to the agg groupby method. Second, never use .ix. If you desire to work with two separate columns at the same time I wou...
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Explain ExtJS 4 event handling

I've recently started learning ExtJS, and have trouble understanding how to handle Events. I have no experience of any previous versions of ExtJS. ...
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Passing arguments to C# generic new() of templated type

...le to be in an invalid state by side effects. I also like to use that Func and lambda, but I know it still is a problem in bussiness world as generally programmers don't know lambdas yet and this makes your class harder to understand. – Tuomas Hietanen Dec 8 '0...