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Efficient SQL test query or validation query that will work across all (or most) databases
...for idleness. For example, the JDBC pooling library c3p0 has a property called preferredTestQuery , which gets executed on the connection at configured intervals. Similarly, Apache Commons DBCP has validationQuery .
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How do you determine the ideal buffer size when using FileInputStream?
...ncy price on the next read, but not the disk->RAM latency. In terms of order of magnitude, disk->RAM latency is so slow that it pretty much swamps any other latency you might be dealing with.
So, I suspect that if you ran a test with different cache sizes (haven't done this myself), you will...
socket.io rooms or namespacing?
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Highlight label if checkbox is checked
...Mar 11 '11 at 17:07
Andrew MarshallAndrew Marshall
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Difference between “on-heap” and “off-heap”
...large amounts of 'unmanaged' memory and use this to save objects there. In order to save arbitrary objects into unmanaged memory, the most viable solution is the use of Serialization. This means the application serializes objects into the offheap memory, later on the object can be read using deseria...
Command line to remove an environment variable from the OS level configuration
... when you click on one, are rearranged. I like for my icons to stay in the order that I opened things in.
– Jamie
Sep 21 '18 at 3:01
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Removing packages installed with go get
... I needed to set my GOPATH otherwise that package sullies my root Go install (I would much prefer to keep my Go install clean and separate core from custom). How do I remove packages installed previously?
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How do HTML parses work if they're not using regexp?
...><i>wow!</b></i>. This obviously doesn't nest, so in order to parse it correctly, a stack is just not powerful enough.
The next level of computation is languages generated by general grammars, and recognized by Turing machines. This is generally accepted to be effectively the...
Mocking member variables of a class using Mockito
...ct to test. I have all reasons to want to mock this FileSystem manager, in order to test the First class, and zero reason to make it accessible. I can do this in Python, so why not with Mockito ?
– Zangdar
Apr 21 at 18:11
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How to check if a file is a valid image file?
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That won't be sufficient if he's really testing for "valid" images; the presence of a magic number doesn't guarantee that the file hasn't been truncated, for example.
– Ben Blank
May 20 '09 at 18:11
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