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Should I commit or rollback a read transaction?
...ppers might consider a rollback in an inner transaction as an sign that an error has occured and rollback everything in the outmost transaction, regardless whether the outmost transaction commited or rolled back.
So a COMMIT is the safe way, when you cannot rule out that your component is used by s...
Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
... 1: 8.8.8.8
If the command appears to hang, but eventually spits out the error "can't resolve 'google.com'", then you have the same problem as me.
The nslookup command queries the DNS server 8.8.8.8 in order to turn the text address of 'google.com' into an IP address. Ironically, 8.8.8.8 is Googl...
Find all files in a directory with extension .txt in Python
How can I find all the files in a directory having the extension .txt in python?
26 Answers
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@Override is not allowed when implementing interface method
... You could say that this thread duplicates another one: How do I turn off error validation for annotations in IntelliJ IDEA?
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When should we call System.exit in Java
...e sense if you're writing a command line tool, and you want to indicate an error via the exit code rather than just throwing an exception... but I can't remember the last time I used it in normal production code.
share
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Where can I locate themes for VS2012
... doesnt work if installed version of VS2010 is express edition. I got this error message from VSIP.exe : "Unable to find an installed edition of Visual Studio 2010". VS2012 version installed on my machine is professional version.
– tigrou
Jan 31 '13 at 10:38
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Can't connect Nexus 4 to adb: unauthorized
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I think it has an error when the device tries to display the screen asking for permission, so it does not appear.
This works for me (commands are given in the adb shell):
rm /data/misc/adb/adb_keys;
I sent the public key (adbkey.pub in ~/.a...
Installing rmagick on Ubuntu
...ll didn't help me when I try to install RMagick using RubyGems. I got this error:
15 Answers
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How do I combine a background-image and CSS3 gradient on the same element?
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body {
background: #eb01a5;
background-image: url("IMAGE_URL"); /* fallback */
background-image: url("IMAGE_URL"), linear-gradient(#eb01a5, #d13531); /* W3C */
}
These 2 lines are the fallback for any browser that doesn't do gradients.
See notes for stacking images only IE < 9 ...
Running Python code in Vim
...th python
Explanation:
autocmd: command that Vim will execute automatically on {event} (here: if you open a python file)
[i]map: creates a keyboard shortcut to <F9> in insert/normal mode
<buffer>: If multiple buffers/files are open: just use the active one
<esc>: leaving insert...