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Reading Properties file in Java
... file. I'm guessing that myProp.properties is in the root of your project, if that's the case, you need a preceding slash:
InputStream stream = loader.getResourceAsStream("/myProp.properties");
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Can linux cat command be used for writing text to file?
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If you need to use double quotes in your text, encompass the whole thing in single quotes. This is useful for .json and the likes, e.g. echo '{"info1": "123456"}' > info.json
– bkd
No...
What is a sealed trait?
...ds Answer
case object No extends Answer
The compiler will emit a warning if a match is not exhaustive:
scala> val x: Answer = Yes
x: Answer = Yes
scala> x match {
| case No => println("No")
| }
<console>:12: warning: match is not exhaustive!
missing combination ...
mysql: see all open connections to a given database?
...tive permissions im mysql, how can I see all the open connections to a specific db in my server?
8 Answers
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Should I inherit from std::exception?
...st one reliable source (a C++ class I took) recommend that application-specific exception classes in C++ should inherit from std::exception . I'm not clear on the benefits of this approach.
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Should I add the Visual Studio .suo and .user files to source control?
...These files contain user preference configurations that are in general specific to your machine, so it's better not to put it in SCM. Also, VS will change it almost every time you execute it, so it will always be marked by the SCM as 'changed'.
I don't include either, I'm in a project using VS for 2...
Get full path of the files in PowerShell
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Add | select FullName to the end of your line above. If you need to actually do something with that afterwards, you might have to pipe it into a foreach loop, like so:
get-childitem "C:\windows\System32" -recurse | where {$_.extension -eq ".txt"} | % {
Write-Host $_.FullN...
How can I avoid running ActiveRecord callbacks?
...n :do_something_else
skip_callback :validation, :before, :do_something, if: :skip_some_callbacks
skip_callback :validation, :after, :do_something_else, if: :skip_some_callbacks
end
person = Person.new(person_params)
person.skip_some_callbacks = true
person.save
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Shell command to tar directory excluding certain files/folders
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As an example, if you are trying to backup your wordpress project folder, excluding the uploads folder, you can use this command: tar -cvf wordpress_backup.tar wordpress --exclude=wp-content/uploads
– shasi kanth
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The project type is not supported by this installation
...ck some advanced frameworks like newer versions of Windows Mobile SDK, but if I recall correctly,the error message in such case is different.
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