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About Java cloneable
... Block says not to use Cloneable. He does not say don't use cloning (or at least I hope not). There are many ways to implement cloning simply that are far more efficient than classes like SerializationUtils or BeanUtils that use reflection. See my post below for an example.
– C...
What's the point of having pointers in Go?
... they contain such a "feature"... It's confusing and seems unnecessary, at least to the people pointing this out here.
– Akito
Aug 23 at 18:23
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What is a “cache-friendly” code?
...n the cache. So, when the cache is going to load an item, it looks for the least recently used3 item among those four, flushes it to main memory, and loads the new item in its place.
The problem is probably fairly obvious: for a direct-mapped cache, two operands that happen to map to the same cache ...
What is the difference between Pan and Swipe in iOS?
... to be considered a pan. It changes (changed) when a finger moves while at least the minimum number of fingers are pressed down. It ends (ended) when all fingers are lifted.
Clients of this class can, in their action methods, query the UIPanGestureRecognizer object for the current translation of th...
What are the pros and cons of performing calculations in sql vs. in your application
...manages to fetch more than one row per system call. Row at a time takes at least four system calls.
– wildplasser
Sep 22 '11 at 22:42
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visual c++: #include files from other projects in the same solution
...refer to add the parent folder of the projects source files, so you can at least specify yourself, e.g. #include "proj2\include.h". Having multiple projects per solution seems very directed towards the NET languages, as they are used very differently. Yet to find a great way to overcome this for C++...
HashSet versus Dictionary w.r.t searching time to find if an item exists
...p times, and my conclusion is that they ARE in fact the same speed. (Or at least, if there is any difference, then the difference is well within the Standard Deviation of that speed)
Specifically, 100,000,000 lookups was taking between 10 and 11.5 seconds for both, for me, in this test.
Test Code:
p...
How can I get Visual Studio 2008 Windows Forms designer to render a Form that implements an abstract
...e project. @ObliviousSage - Thanks for the heads-up; in my current case at least this isn't an issue but still it's a good one to watch out for.
– InteXX
Feb 13 '15 at 7:55
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onKeyPress Vs. onKeyUp and onKeyDown
...rences between keyup and keypress as it pertains to input field values, at least in Firefox (tested in 43).
If the user types 1 into an empty input element:
The value of the input element will be an empty string (old value) inside the keypress handler
The value of the input element will be 1 (new...
Catching java.lang.OutOfMemoryError?
...VM is dying (or already dead) anyway and by catching the Error there is at least a chance of cleanup.
The caveat is that you have to target the catching of these types of errors only in places where cleanup is possible. Don't blanket catch(Throwable t) {} everywhere or nonsense like that.
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