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Difference between File.separator and slash in paths
... problem with the performance, since you are expecting the separator to be converted into something else at runtime. Also, do not expect this to happen in all the unsupported JVM's out there.
– jpabluz
Mar 10 '10 at 14:28
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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...ll TTY devices but you might want to exclude those pesky virtual terminals and pseudo terminals. I suggest you examine only those which have a device/driver entry:
# ll /sys/class/tty/*/device/driver
lrwxrwxrwx 1 root root 0 2012-03-28 19:07 /sys/class/tty/ttyS0/device/driver -> ../../../bus/pnp...
Is it possible to make a type only movable and not copyable?
...ntation.
To answer the question you didn't ask... "what's up with moves and copy?":
Firstly I'll define two different "copies":
a byte copy, which is just shallowly copying an object byte-by-byte, not following pointers, e.g. if you have (&usize, u64), it is 16 bytes on a 64-bit computer, ...
How to serialize Joda DateTime with Jackson JSON processor?
...dd that I get the compile error "incompatible types: JodaModule cannot be converted to Module" - the method expects a org.codehaus.jackson.map.Module but JodaModule does not have this in its heirarchy so how could this work?
– Martin Charlesworth
Nov 20 '13 at...
cURL equivalent in Node.js?
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This site can convert your cURL command to node.js request: curl.trillworks.com/#node
– Maxim Mai
Jan 13 '16 at 20:34
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Declaring variables inside or outside of a loop
...that str absolutely ought to be declared within the while loop. No ifs, no ands, no buts.
The only case where this rule might be violated is if for some reason it is of vital importance that every clock cycle must be squeezed out of the code, in which case you might want to consider instantiating s...
Import and Export Excel - What is the best library? [closed]
...native format that is convenient to you, write a prog. that uses EPPlus to convert to Excel, make that free. Make your main prog use that as default, but allow other "plugins", hey presto your real code is free from the GPL.
– user159335
Nov 3 '11 at 16:01
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How many and which are the uses of “const” in C++?
...y obscure to me, one of these is const . You can use it in so many places and with so many different effects that is nearly impossible for a beginner to come out alive. Will some C++ guru explain once forever the various uses and whether and/or why not to use them?
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In java how to get substring from a string till a character c?
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look at String.indexOf and String.substring.
Make sure you check for -1 for indexOf.
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LAST_INSERT_ID() MySQL
... Thanks! I didn't get it working first as I was using asp.net with MySQL and needed to add Allow User Variables=True to the Connection String to allow variables.
– Martin
Oct 1 '10 at 10:19
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