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How to get current working directory in Java?
...ser.dir");
System.out.println("current dir = " + dir);
}
}
if you are in /User/me/ and your .jar file containing the above code is in /opt/some/nested/dir/
the command java -jar /opt/some/nested/dir/test.jar Test will output current dir = /User/me.
You should also as a bonus look at...
Git branch diverged after rebase
...n't work, because the integrity of the branches history will be disturbed. If you are collaborating with others on this branch, force pushing is a bad idea, as it will cause other collaborators to become very confused when their history suddenly doesn't match.
TL;DR - If you're not collaborating, ...
Does Android keep the .apk files? if so where?
...
To specify target file path or name, adb pull /data/app/com.example.app-filename.apk path/to/desired/destination
– manikanta
Nov 14 '19 at 5:57
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ASP.NET MVC: No parameterless constructor defined for this object
... only have this problem (no parameterless bla bla...) during serialization if I define a constructor, and not a parameterless contructor. I mean, in this example, if you delete the constructor you defined ( public MyModel(IHelper helper) {} ) the problem disappears... so everytime you create a const...
Alternatives to dispatch_get_current_queue() for completion blocks in iOS 6?
...ese properties: x, y, z", and let the block dispatch to a particular queue if the caller wants more control than that. A typical set of properties to specify would be something like "serial, non-reentrant, and async with respect to any other application-visible queue".
** EDIT **
Catfish_Man put ...
Deleting all records in a database table
...
If you are looking for a way to it without SQL you should be able to use delete_all.
Post.delete_all
or with a criteria
Post.delete_all "person_id = 5 AND (category = 'Something' OR category = 'Else')"
See here for mor...
How to redirect to a 404 in Rails?
...self, there's no reason to; Rails has this functionality built in already. If you want to show a 404 page, create a render_404 method (or not_found as I called it) in ApplicationController like this:
def not_found
raise ActionController::RoutingError.new('Not Found')
end
Rails also handles Abs...
How to identify server IP address in PHP
How can I identify the server IP address in PHP?
15 Answers
15
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How do I bind a WPF DataGrid to a variable number of columns?
My WPF application generates sets of data which may have a different number of columns each time. Included in the output is a description of each column that will be used to apply formatting. A simplified version of the output might be something like:
...
How do you truncate all tables in a database using TSQL?
...You cannot truncate tables which have foreign keys, so this will only work if there are no foreign key constraints between tables (or they have been disabled).
– marcj
Oct 1 '08 at 12:31
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