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Constructor in an Interface?

...which implement the message interface, I can only define the send method and not the constructor" ...these requirements are exactly what abstract classes are for. share | improve this answer ...
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Facebook access token server-side validation for iPhone app

...developing iPhone application, that is based on communication with server, and I want to use Facebook authentication mechanisms. ...
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How to know if an object has an attribute in Python

...at, if the property is likely to be there most of the time, simply call it and either let the exception propagate, or trap it with a try/except block. This will likely be faster than hasattr. If the property is likely to not be there most of the time, or you're not sure, using hasattr will probably ...
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How to get just one file from another branch

I am using git and working on master branch. This branch has a file called app.js . 10 Answers ...
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SELECT INTO a table variable in T-SQL

...' to go into the UserData 'name' variable but you are selecting 'location' and somehow assigning it to the UserData 'oldlocation' variable. Will SQL just map these automatically or will it throw some kind of exception? – Aran Mulholland Nov 17 '15 at 7:23 ...
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Writing to output window of Visual Studio

...e Java's system.out.println("") . I tried Debug.Write , Console.Write , and Trace.Write . It does not give an error, but it does not print anything either. ...
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What is the convention for word separator in Java package names?

... of a unique package name is always written in all-lowercase ASCII letters and should be one of the top-level domain names, currently com, edu, gov, mil, net, org, or one of the English two-letter codes identifying countries as specified in ISO Standard 3166, 1981. Subsequent components of the ...
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Are foreign keys really necessary in a database design?

... ON DELETE CASCADE. This means that if you have one table containing users and another containing orders or something, then deleting a user could automatically delete all orders that point to that user. share | ...
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How do I disable directory browsing?

I want to disable directory browsing of /galerias folder and all subdirectories 12 Answers ...
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Deep copy of a dict in python

... Is there any difference in Python 3.2 and 2.7 codes? They seem identical to me. If so, would be better a single block of code and a statement "Works for both Python 3 and 2" – MestreLion Jun 7 '14 at 3:59 ...