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How do you cast a List of supertypes to a List of subtypes?
...@jfritz42 I wouldn't call it "dodging" type safety. In this case you have knowledge that Java doesn't have. That's what casting is for.
– Planky
Jul 11 '14 at 17:08
4
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When should null values of Boolean be used?
...n column in a database, for example). The null value might mean "we don't know if it's true or false" in this context.
each time a method needs an Object as argument, and you need to pass a boolean value. For example, when using reflection or methods like MessageFormat.format().
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javascript regex - look behind alternative?
... that, the lookbehind has the same limitation which I didn't realise until now...
– daniel
Sep 11 '11 at 7:40
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git: How to diff changed files versus previous versions after a pull?
When I run "git pull" I often want to know what changed between the last version of a file and the new one. Say I want to know what someone else committed to a particular file.
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Automatically start a Windows Service on install
...er(serviceInstaller.ServiceName))
{
sc.Start();
}
}
Now when you run InstallUtil on your installer, it will install and then start up the service automatically.
share
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improv...
PHP Difference between array() and []
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@TheAlpha well, even today, I was curious to know if there was performance differences
– Cid
Oct 3 '19 at 8:40
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How to re import an updated package while in Python Interpreter? [duplicate]
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Reload is now longer a function in Python 3. Use imp.reload() instead
– Casebash
Dec 12 '12 at 1:33
5
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How do I remove all non alphanumeric characters from a string except dash?
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@BrianScott I know this is old, but was found in a search so I feel this is relevant. This actually depends on the version of .NET you are running under. > 2.0 uses "" & string.Empty exactly the same. stackoverflow.com/questions/151...
Turning Sonar off for certain code
...cident.
You can read more about this in the FAQ
Edit: 6/30/16
SonarQube is now called SonarLint
In case you are wondering how to find the squid number. Just click on the Sonar message (ex. Remove this method to simply inherit it.) and the Sonar issue will expand.
On the bottom left it will have the ...
How do I make Vim do normal (Bash-like) tab completion for file names?
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This used to be working in the past (gVim/ubuntu) but now it does not (macvim8.x/macOS). See example. Any ideas?
– Paschalis
Dec 21 '16 at 19:19
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