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Use of var keyword in C#
...oing things like var customers = whatever; var query = from c in customers select stuff it doesn't matter what the exact type of 'customers' is. It's obvious how you can use it, and that's enough. And if the actual type is cumbersome, it's worthwhile to suppress it.
– Joren
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Interface vs Abstract Class (general OO)
...e strategy pattern. A Pilot would have a collection of certifications, and select the correct one at runtime. The certifications would be coded as behaviors that would implement the IFlyPlane interface, with TakeOff, Land, Eject methods.
– Michael Blackburn
Dec...
Difference between Covariance & Contra-variance
...vide so-called “multiple dispatch” or multi methods (this is basically selecting function overloads at run time, e.g. with CLOS) or get the desired effect by using dynamic typing.
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Mocking member variables of a class using Mockito
...ave a database and this override will return a value so you do not need to select. Most recently I had a service bus that I did not want to actually process the message but wanted to ensure it received it. Thus, I set the private bus instance this way-Helpful?
– dave
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CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术
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GVIS_FOCUSED
单元格成为焦点
GVIS_SELECTED
单元格被选中
GVIS_DROPHILITED
单元格被高亮显示
GVIS_READONLY
单元格只读
GVIS_FIXED
单元格固定
GVIS_FIXED...
how to install gcc on windows 7 machine?
...ain Cygwin page. What is tricky about the installer is making sure you are selecting the right packages. From the instructions, which has this to say about gcc: "By default, setup.exe will install only the packages in the Base category and their dependencies, resulting in a minimal Cygwin installati...
Finding all cycles in a directed graph
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This answer is much better than the answer selected. I struggled for quite a while trying to figure out how to get all simple cycles from the strongly connected components. It turns out this is non-trivial. The paper by Johnson contains a great algorithm, but is a lit...
Design patterns to avoid [closed]
...you end up with when you wish to use a single-type dispatch OO language to select the code to use based on the type of two (or more) different objects.
The classic example being that you have the intersection between two shapes, but there's an even simpler case that's often overlooked: comparing th...
Understanding REST: Verbs, error codes, and authentication
...w Session ID, or leave any residue on the server. The GET verb is like the SELECT statement in a database engine. Remember that the response to any request with the GET verb should be cache-able when requested with the same parameters, just like when you request a static web page.
Point 3: How to...
How can I pair socks from a pile efficiently?
...d for other colors in everyday's life» A good standard rule for easy sock selection is actually that they should match either the color of your trousers or the color of your belt. For this reason, the most commonly used colors will likely be black, blue, gray and some brown. It's hard to believe on...