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Why prefer two's complement over sign-and-magnitude for signed numbers?

...der to represent -1 in binary, two's complement is used: flipping the bits and adding 1? 18 Answers ...
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What is the meaning and difference between subject, user and principal?

...ntext of security frameworks, a few terms commonly occur subject , user and principal , of which I have not been able to find a clear definition and the difference between them. ...
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What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?

...ing at a HTML 5 boilerplate template (from http://html5boilerplate.com/ ) and noticed the use of "?v=1" in URLs when referring to CSS and Javascript files. ...
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NoClassDefFoundError - Eclipse and Android

I'm having a problem trying to run an Android app which, up until adding a second external library to its build path, was working fine. Since having added the scoreninja jar, I now get a NoClassDefFoundError when I try to run the app. ...
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Business logic in MVC [closed]

... @mud what if we devide our model into two more layers i.e service layer and repository...service layer is responsible for business logic and repository is responsible for data layer...? – Dragon Nov 14 '15 at 19:02 ...
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Java Interfaces/Implementation naming convention [duplicate]

...ation information to add to the implementation name - like interface FileHandler and class SqlFileHandler . 9 Answers ...
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Is there a way to get the source code from an APK file?

The hard drive on my laptop just crashed and I lost all the source code for an app that I have been working on for the past two months. All I have is the APK file that is stored in my email from when I sent it to a friend. ...
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Best practices: throwing exceptions from properties

...eed to throw. For setters they indicate that exceptions are an appropriate and acceptable error handling strategy. For indexers, Microsoft indicates that it is acceptable for both getters and setters to throw exceptions. And in fact, many indexers in the .NET library do this. The most common except...
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What is the purpose of a stack? Why do we need it?

...the stack? I assume you mean the evaluation stack of the MSIL language, and not the actual per-thread stack at runtime. Why is there a transfer from memory to stack or "loading?" On the other hand, why is there a transfer from stack to memory or "storing"? Why not just have them all placed i...
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When NOT to use Cassandra?

There has been a lot of talk related to Cassandra lately. 18 Answers 18 ...