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How do you declare an interface in C++?
...al function declared using the following syntax:
class A
{
virtual void foo() = 0;
};
An abstract base class cannot be instantiated, i. e. you cannot declare an object of class A. You can only derive classes from A, but any derived class that does not provide an implementation of foo() will als...
Are there any reasons to use private properties in C#?
I just realized that the C# property construct can also be used with a private access modifier:
16 Answers
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C# elegant way to check if a property's property is null
In C#, say that you want to pull a value off of PropertyC in this example and ObjectA, PropertyA and PropertyB can all be null.
...
Delete multiple remote branches in git
I have a team member who inadvertently pushed over 150 of his local branches to our central repo. Thankfully, they all have the same prefix. Using that prefix, is there a git command or cool little shell script I can use that will delete all of those at once?
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Reading a List from properties file and load with spring annotation @Value
I want to have a list of values in a .properties file, ie:
16 Answers
16
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Class with Object as a parameter
...ake of backward-compatibility.)
In general, in a statement such as
class Foo(Base1, Base2):
Foo is being declared as a class inheriting from base classes Base1 and Base2.
object is the mother of all classes in Python. It is a new-style class, so inheriting from object makes Table a new-style cl...
Get index of array element faster than O(n)
Given I have a HUGE array, and a value from it. I want to get index of the value in array. Is there any other way, rather then call Array#index to get it? The problem comes from the need of keeping really huge array and calling Array#index enormous amount of times.
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Relationship between hashCode and equals method in Java [duplicate]
I read in many places saying while override equals method in Java, should override hashCode method too, otherwise it is "violating the contract".
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What is the Python equivalent of Matlab's tic and toc functions?
...time() - self.tstart))
It can be used as a context manager:
with Timer('foo_stuff'):
# do some foo
# do some stuff
Sometimes I find this technique more convenient than timeit - it all depends on what you want to measure.
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Ensuring json keys are lowercase in .NET
... used like this:
var json = LowercaseJsonSerializer.SerializeObject(new { Foo = "bar" });
// { "foo": "bar" }
ASP.NET MVC4 / WebAPI
If you are using ASP.NET MVC4 / WebAPI, you can use a CamelCasePropertyNamesContractResolver from Newtonsoft.Json library which included by default.
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