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What is hashCode used for? Is it unique?
...d to identify an object
during equality testing. It can also serve as an index for an object
in a collection.
The GetHashCode method is suitable for use in hashing algorithms and
data structures such as a hash table.
The default implementation of the GetHashCode method does not
gua...
Nearest neighbors in high-dimensional data?
...as you said, kd-tree works poorly in high dimensions. In fact, all current indexing techniques (based on space partitioning) degrade to linear search for sufficiently high dimensions [1][2][3].
Among ANN algorithms proposed recently, perhaps the most popular is Locality-Sensitive Hashing (LSH), whi...
What is the use of ByteBuffer in Java? [closed]
... absolute put. The Javadoc seems to indicate that absolute put requires an index value.
– Chuck Wolber
Nov 12 '13 at 21:21
6
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How to create an HTTPS server in Node.js?
...information came in very handy as I run a node.js tool (PDFJS) on top of a PHP app that was recently forced to run over https. The iframe was very unhappy to load my node.js app on an alternate, non-https port.
– lewsid
Oct 7 '14 at 16:12
...
How to transfer some data to another Fragment?
...ndle savedInstanceState) {
super.onCreate(savedInstanceState);
int index = getArguments().getInt("index");
}
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SQL Data Reader - handling Null column values
...
You need to check for IsDBNull:
if(!SqlReader.IsDBNull(indexFirstName))
{
employee.FirstName = sqlreader.GetString(indexFirstName);
}
That's your only reliable way to detect and handle this situation.
I wrapped those things into extension methods and tend to return a default...
Does it make sense to do “try-finally” without “catch”?
...you want the currently executing method to still throw the exception while allowing resources to be cleaned up appropriately. Below is a concrete example of handling the exception from a calling method.
public void yourOtherMethod() {
try {
yourMethod();
} catch (YourException ex) {...
Install Marketplace plugin on Eclipse Juno
...asy way to add Eclipse MarketPlace
1. Go to http://eclipse.org/mpc/archive.php and download mpc zip for your eclipse.
2. Than go to Eclipse -> Help -> Install New Software and Add and select Archive file Location
then press ok, it will check dependency and install it.
And Enjoy....
...
Literal notation for Dictionary in C#?
...e intuitive syntax with Dictionary as well as any other type that supports indexers. The above statement can be rewritten as:
var data = new Dictionary<string, string>
{
["test"] = "val",
["test2"] = "val2"
};
Unlike collection initializers, this invokes the indexer setter under the...
When should I use Kruskal as opposed to Prim (and vice versa)?
...in a very straightforward way : http://www.thestudentroom.co.uk/showthread.php?t=232168.
Kruskal's algorithm will grow a solution from the cheapest edge by adding the next cheapest edge, provided that it doesn't create a cycle.
Prim's algorithm will grow a solution from a random vertex by adding ...