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How to determine if a type implements a specific generic interface type
...plements(IBar), or even better, using a keyword "is" .... I'm exploring c# and I'm a more then bit disappointed in .net right now ...
– Sofija
Mar 5 '12 at 22:12
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Java: random long number in 0
Random class has a method to generate random int in a given range. For example:
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Will strlen be calculated multiple times if used in a loop condition?
...tion. If it might, then you'll need to either call strlen() each time, or handle it through more complicated logic.
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Use of Initializers vs Constructors in Java
So I've been brushing up on my Java skills as of late and have found a few bits of functionality that I didn't know about previously. Static and Instance Initializers are two such techniques.
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Random row from Linq to Sql
What is the best (and fastest) way to retrieve a random row using Linq to SQL when I have a condition, e.g. some field must be true?
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SQL Server insert if not exists best practice
I have a Competitions results table which holds team member's names and their ranking on one hand.
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Test if lists share any items in python
... ways to test if two lists a and b share any items. The first option is to convert both to sets and check their intersection, as such:
bool(set(a) & set(b))
Because sets are stored using a hash table in Python, searching them is O(1) (see here for more information about complexity of operator...
Calling constructor from other constructor in same class
...cal instance of Lens which goes out of scope at the end of the constructor and is NOT assigned to "this". You need to use the constructor chaining syntax in Gishu's post to achieve what the question asks.
– Colin Desmond
May 6 '09 at 14:31
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Easiest way to flip a boolean value?
... it can be helpful to have a TOGGLE(a) macro. This prevents some mistakes and makes it all more readable on narrow screens.
– OJW
Oct 1 '10 at 12:17
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How to take a screenshot programmatically on iOS
...what is working everytime!!!! I have a lot of 3d transforms on the scrreen and other solutions did mess in my screenshot. This works like it should. Thanks a lot!
– AndrewK
Jul 23 '15 at 14:04
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