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Why java.util.Optional is not Serializable, how to serialize the object with such fields
... dealing with possibly absent values (compared to the use of null). But it does not add any benefit to a persistent representation of your data. It would just make your serialized data bigger…
The sketch above might look complicated but that’s because it demonstrates the pattern with one proper...
How do I shutdown, restart, or log off Windows via a bat file?
...e: There is a common pitfall wherein users think -h means "help" (which it does for every other command-line program... except shutdown.exe, where it means "hibernate"). They then run shutdown -h and accidentally turn off their computers. Watch out for that.
shutdown -i — "Interactive mode". Inste...
Useful example of a shutdown hook in Java?
...e unstarted threads that are registered with Runtime.addShutdownHook().JVM does not give any guarantee on the order in which shutdown hooks are started.For more info refer http://techno-terminal.blogspot.in/2015/08/shutdown-hooks.html
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Can ordered list produce result that looks like 1.1, 1.2, 1.3 (instead of just 1, 2, 3, …) with css?
...his solution misses one tiny thing: the dot following the item number. It doesn't look like the standard list style. Fix by adding a dot to the rule for li:before: content: counters(item, ".")". ";
– L S
Jan 20 '14 at 14:09
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How to create an array of 20 random bytes?
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This method doesn't exist anymore.
– Martijn Hiemstra
Dec 21 '18 at 11:16
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What version of Visual Studio is Python on my computer compiled with?
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Where does this table come from?
– Glyph
Aug 20 '12 at 0:30
5
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Update Row if it Exists Else Insert Logic with Entity Framework
Does anyone have suggestions on the most efficient way to implement "update row if it exists else insert" logic using Entity Framework?
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What is a build tool?
...ode that he has been fiddling with with the latest builds of the libraries does not work!
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The current branch is not configured for pull No value for key branch.master.merge found in configur
...figured for pull".
Problem is that on desktop, "testing" is local only, does not have remote URL info, so cannot pull changes.
I solved this within eclipse (egit) by:
deleting local branch
pull branch from remote repo as new
branch.
Steps were:
Go to Git Repository Exploring perspective
re...
Remove whitespaces inside a string in javascript
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The currently accepted answer does the same thing. Please present some relevant tests indicating this is faster than that answer by anything more than nanoseconds.
– Heretic Monkey
Apr 10 at 12:31
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