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Are non-synchronised static methods thread safe if they don't modify static class variables?
... case) are also thread-safe because once created they can't be changed and all threads see the same value. On the other hand if the method was accepting (mutable) Date you could have had a problem. Two threads can simultaneously modify that same object instance, causing race conditions and visibilit...
How to change owner of PostgreSql database?
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Note, all tables and sequences inside the database will still be assigned to the original owner.
– Cerin
Nov 2 '16 at 0:52
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Subset of rows containing NA (missing) values in a chosen column of a data frame
...ated. THe point is to use is.na, I wrongly interpreted you wanted to check all variables.
– Joris Meys
Nov 2 '11 at 21:34
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How do I find a stored procedure containing ?
... A million times what @PeteT said. This 4000 character limit really bit me a few years ago.
– Vivian River
Mar 31 '15 at 17:40
16
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Eclipse: The declared package does not match the expected package
...es of the project don't seem to be what Eclipse expects. The package names all have a prefix:
13 Answers
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Ruby on Rails generates model field:type - what are the options for field:type?
...nother model's ID. I'd look it up myself, but I haven't figured out, among all my Ruby on Rails documentation links, how to find the definitive source.
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Best way to load module/class from lib folder in Rails 3?
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# Autoload lib/ folder including all subdirectories
config.autoload_paths += Dir["#{config.root}/lib/**/"]
Source: Rails 3 Quicktip: Autoload lib directory including all subdirectories, avoid lazy loading
Please mind that files contained in the lib folder...
the item you requested is not available for purchase
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Make sure to upload the signed APK to developer console.
Make sure to install the signed APK on your device not launch the app in the debugger.
Make sure to create a test account in your developer console.
Setup you testing account
Make sure to sign in your device with your test account.
In a cas...
How can I use tabs for indentation in IntelliJ IDEA?
...nvert tabs to spaces, you can chose "To Spaces" from the same place.
For all files
The paths in the other answers were changed a little:
File > Settings... > Editor > Code Style > Java > Tabs and Indents > Use tab character
File > Other Settings > Default Settings... &g...
Throw away local commits in Git
...commits ahead of the origin, and not in a good state. I want to get rid of all these commits and start over again.
19 Answe...