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Understand the “Decorator Pattern” with a real world example
...ty wiki
14 revs, 5 users 88%this. __curious_geek
106
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...e multiplies in it, no divide. => Faster!
And: the full update step new_x = x + dx then reads:
x *= 3/2 - y/2 * x * x which is easy too.
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fo...
Knight's Shortest Path on Chessboard
...oints in a graph can be found using http://en.wikipedia.org/wiki/Dijkstra's_algorithm
Pseudo-code from wikipedia-page:
function Dijkstra(Graph, source):
for each vertex v in Graph: // Initializations
dist[v] := infinity // Unknown distance function from source to ...
Error java.lang.OutOfMemoryError: GC overhead limit exceeded
...
}
System.out.printf("Done.%n");
}
}
Using Java 1.6.0_24-b07 on a Windows 7 32 bit.
java -Xloggc:gc.log GarbageCollector
Then look at gc.log
Triggered 444 times using BAD method
Triggered 666 times using WORSE method
Triggered 354 times using BETTER method
Now granted, ...
How to create SBT project with IntelliJ Idea?
...
Create and add the following lines to ~/.sbt/plugins/build.sbt OR PROJECT_DIR/project/plugins.sbt
resolvers += "sbt-idea-repo" at "http://mpeltonen.github.com/maven/"
addSbtPlugin("com.github.mpeltonen" % "sbt-idea" % "1.6.0")
Use gen-idea in sbt to create IDEA project files.
By default, cl...
How to add “active” class to Html.ActionLink in ASP.NET MVC
... "active" : "") "><a href="@Url.Action("Index","Scheduler")" target="_self">Scheduler</a></li>
</ul>
This solved my problem.
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How do you get the length of a list in the JSF expression language?
...g addressed in a JSR245 maintenance release: blogs.sun.com/kchung/entry/jsr_245_mr_part_i (In terms of JEE specs, that'll be JEE6)
– McDowell
Sep 1 '09 at 11:46
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How to generate the JPA entity Metamodel?
...jpa.JPACriteriaProcessor
http://www.datanucleus.org/products/accessplatform_2_1/jpa/jpql_criteria_metamodel.html
The latest Hibernate implementation is available at:
https://mvnrepository.com/artifact/org.hibernate/hibernate-jpamodelgen/
An older Hibernate implementation is at:
http://repo...
Are there any suggestions for developing a C# coding standards / best practices document? [closed]
...'ve just started at a place where the coding standards mandate the use of m_ for member variables, p_ for parameters and prefixes for types, such as 'str' for strings.
So, you might have something like this in the body of a method:
m_strName = p_strName;
Horrible. Really horrible.
...
Spring Test & Security: How to mock authentication?
...(basicUser, Arrays.asList(
new SimpleGrantedAuthority("ROLE_USER"),
new SimpleGrantedAuthority("PERM_FOO_READ")
));
User managerUser = new UserImpl("Manager User", "manager@company.com", "password");
UserActive managerActiveUser = new UserActi...