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Conventions for exceptions or error codes
...tion can then contain code to check whether the file exists, or is locked, etc)
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How to initialize log4j properly?
...sed to initialize itself, which loggers / appenders got configured and how etc.
The configuration file can be a java properties file or an xml file. Here is a sample of the properties file format taken from the log4j intro documentation page:
log4j.rootLogger=debug, stdout, R
log4j.appender.stdo...
Using Enum values as String literals
...he values in use including duplication, non valid variable name characters etc. Just don't forget to also override valueOf().
– indivisible
Apr 6 '17 at 15:21
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“Remote System Explorer Operation” causing freeze for couple of seconds
...ct General > Workspace > Build in the tree
Uncheck Use default build order
Select RemoteSystemsTempFiles
Click Remove Project
Click Apply and Close
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Valid to use (anchor tag) without href attribute?
...f this is that an <a> element without [href] won't be in the tabbing order by default.
The real question is whether the <a> element alone is an appropriate representation of a <button>. On a semantic level, there is a distinct difference between a link and a button.
A button is s...
SQLite: How do I save the result of a query as a CSV file?
...ite3.connect('your_cool_database.sqlite')
df = pd.read_sql('SELECT * from orders', conn)
df.to_csv('orders.csv', index = False)
You can customize the query to only export part of the sqlite table to the CSV file.
You can also run a single command to export all sqlite tables to CSV files:
for table...
Is System.nanoTime() completely useless?
... code that uses nanoTime() for timed blocking, interval waiting, timeouts, etc. should preferably treat negative time differences (timeouts) as zeros rather than throw exceptions. This practice is also preferable because it is consistent with the behaviour of all timed wait methods in all classes in...
Android Studio Multi-Windows for One Project
...t, but I want to have two separate windows, each with their own Title Bar, etc.
– ElectronicGeek
Mar 14 '14 at 16:03
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git produces Gtk-WARNING: cannot open display
...d that it was this script setting this variable on my CentOS 6.7 system: /etc/profile.d/gnome-ssh-askpass.sh
– hshib
Mar 25 '16 at 21:15
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How to randomize two ArrayLists in the same fashion?
...ileToImf.get(item);
}
This will iterate through the images in the random order.
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