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What's invokedynamic and how do I use it?
...and one of those cool features is invokedynamic. I would like to know what it is and how does it make reflective programming in Java easier or better?
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Shuffle an array with python, randomize array item order with python
What's the easiest way to shuffle an array with python?
11 Answers
11
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Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
...ned behaviour. And this means anything can happen, and discussing why does it happen under the rules of C++ doesn't make sense.
C++11 draft N3337: §5.4:1
If during the evaluation of an expression, the result is not mathematically defined or not in the range of
representable values for its t...
Need a simple explanation of the inject method
...back into the accumulator. The next block call has this new value, adds to it, stores it again, and repeats.
At the end of the process, inject returns the accumulator, which in this case is the sum of all the values in the array, or 10.
Here's another simple example to create a hash from an array ...
How do I clone a range of array elements to a new array?
...ents from X that begin at index 3 and ends in index 7. Sure I can easily write a loop that will do it for me but I would like to keep my code as clean as possible. Is there a method in C# that can do it for me?
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Generate Java class from JSON?
...09 when this question was asked:
The JSON Schema spec has moved on a lot. It's still in draft (not finalised) but it's close to completion and is now a viable tool specifying your structural rules
I've recently started a new open source project specifically intended to solve your problem: jsonsche...
Is there a performance difference between i++ and ++i in C++?
...f you don't have a specific reason to use i++.]
For C++, the answer is a bit more complicated.
If i is a simple type (not an instance of a C++ class), then the answer given for C ("No there is no performance difference") holds, since the compiler is generating the code.
However, if i is an instan...
What is a pre-revprop-change hook in SVN, and how do I create it?
I wanted to edit a log comment in the repository browser and received an error message that no pre-revprop-change hook exists for the repository. Besides having a scary name, what is a pre-revprop-change hook, and how do I create it?
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Is Python strongly typed?
... of a value doesn't change in unexpected ways. A string containing only digits doesn't magically become a number, as may happen in Perl. Every change of type requires an explicit conversion.
Dynamic typing means that runtime objects (values) have a type, as opposed to static typing where variables h...
JUnit: how to avoid “no runnable methods” in test utils classes
I have switched to JUnit4.4 from JUnit3.8. I run my tests using ant, all my tests run successfully but test utility classes fail with "No runnable methods" error. The pattern I am using is to include all classes with name *Test* under test folder.
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