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Why does Java's hashCode() in String use 31 as a multiplier?
...multiplication overflowed, information would be lost, as multiplication by 2 is equivalent to shifting. The advantage of using a prime is less clear, but it is traditional. A nice property of 31 is that the multiplication can be replaced by a shift and a subtraction for better performance: 31 * i ==...
java.nio.file.Path for a classpath resource
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keyoxykeyoxy
3,37122 gold badges1919 silver badges1616 bronze badges
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Get properties and values from unknown object
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290
This should do it:
Type myType = myObject.GetType();
IList<PropertyInfo> props = new Li...
Understanding Spliterator, Collector and Stream in Java 8
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142
You should almost certainly never have to deal with Spliterator as a user; it should only be nec...
What is the difference between class and instance methods?
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edited Feb 26 '10 at 17:11
answered Jun 27 '09 at 21:19
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What is a C++ delegate?
...urn (int) d + 1;
}
};
// Use:
Functor f;
int i = f(3.14);
Option 2: lambda expressions (C++11 only)
// Syntax is roughly: [capture](parameter list) -> return type {block}
// Some shortcuts exist
auto func = [](int i) -> double { return 2*i/1.15; };
double d = func(1);
Option 3: ...
Duplicate headers received from server
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236
This ones a little old but was high in the google ranking so I thought I would throw in the an...
What's the difference of $host and $http_host in Nginx
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220
$host is a variable of the Core module.
$host
This variable is equal to line Host in the he...
Installing multiple instances of the same windows service on a server
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edited Jun 27 '14 at 10:19
Gustav Bertram
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Allow user to select camera or gallery for image
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edited Jul 5 '17 at 20:10
Vadim Kotov
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answ...