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Why does Java's hashCode() in String use 31 as a multiplier?
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@Jason See my answer stackoverflow.com/questions/1835976/… . My point is: you get much less collisions if you use a larger prime, and lose nothing these days. The problem is worse if you use non-english languages with common non-ascii...
Java: Multiple class declarations in one file
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My suggested name for this technique (including multiple top-level classes in a single source file) would be "mess". Seriously, I don't think it's a good idea - I'd use a nested type in this situation instead. Then it's still...
How to center an element horizontally and vertically
I am trying to center my tabs content vertically, but when I add the CSS style display:inline-flex , the horizontal text-align disappears.
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ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)
...ection has been changed by replacing it with a different instance (this is my interpretation). Not totally convinced though - will have to look into it further.
– belugabob
Jul 6 '11 at 11:45
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What is the difference between class and instance methods?
... just the class name. In Objective-C they are defined thusly:
@interface MyClass : NSObject
+ (void)aClassMethod;
- (void)anInstanceMethod;
@end
They could then be used like so:
[MyClass aClassMethod];
MyClass *object = [[MyClass alloc] init];
[object anInstanceMethod];
Some real world exa...
Use JNI instead of JNA to call native code?
...ompatible with LGPL.
That is only what I can come up with off the top of my head, though I am not a heavy user of either. It also seems like you might avoid JNA if you wanted a better interface than the one they provide but you could code around that in java.
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Update value of a nested dictionary of varying depth
...t saved or returned anywhere, just lost when the recursive call returns).
My other changes are minor: there is no reason for the if/else construct when .get does the same job faster and cleaner, and isinstance is best applied to abstract base classes (not concrete ones) for generality.
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What is a C++ delegate?
...ber of choices to achieve delegates in C++. Here are the ones that came to my mind.
Option 1 : functors:
A function object may be created by implementing operator()
struct Functor
{
// Normal class/struct members
int operator()(double d) // Arbitrary return types and parameter list
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Explicitly calling return in a function or not
... not as standard user or analyst using R can not see the real difference.
My opinion is that the question should be: Is there any danger in using explicit return coming from R implementation?
Or, maybe better, user writing function code should always ask: What is the effect in not using explicit r...
When is CRC more appropriate to use than MD5/SHA1?
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Okay, I'll include the conclusion in my answer.
– Andre Luus
Jan 21 '14 at 6:47
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