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What is the definition of “interface” in object oriented programming
Ok, a friend of mine go back and forth on what "interface" means in programming.
16 Answers
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Passing a String by Reference in Java?
I am used to doing the following in C :
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Should I index a bit field in SQL Server?
I remember reading at one point that indexing a field with low cardinality (a low number of distinct values) is not really worth doing. I admit I don't know enough about how indexes work to understand why that is.
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PHP global in functions
What is the utility of the global keyword ?
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What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]
The sample code below occurred naturally. Suddenly my code thew a very nasty-sounding FatalExecutionEngineError exception. I spent a good 30 minutes trying to isolate and minimize the culprit sample. Compile this using Visual Studio 2012 as a console app:
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Why should hash functions use a prime number modulus?
A long time ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math".
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What's the difference between eval, exec, and compile?
I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement.
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What is ViewModel in MVC?
I am new to ASP.NET MVC. I have a problem with understanding the purpose of a ViewModel.
14 Answers
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Explicitly calling return in a function or not
A while back I got rebuked by Simon Urbanek from the R core team (I believe) for recommending a user to explicitly calling return at the end of a function (his comment was deleted though):
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What is a callback?
What's a callback and how is it implemented in C#?
11 Answers
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