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Is a Java string really immutable?
...ge the values of enums, change the lookup table used in Integer autoboxing etc.
Now, the reason s1 and s2 change value, is that they both refer to the same interned string. The compiler does this (as mentioned by other answers).
The reason s3 does not was actually a bit surprising to me, as I tho...
NUnit vs. Visual Studio 2008's test projects for unit testing [closed]
... features.
There are extensions being developed
for NUnit, like row-tests, etc.
Visual Studio tests take a long time
to start up for some reason. This is
better in Visual Studio 2008,
but it is still too slow
for my taste. Quickly running a test
to see if you didn't break something
can take too lo...
Rails: where does the infamous “current_user” come from?
...requisites to using current_user (like the existence of sessions, users, etc)?
2 Answers
...
Get nested JSON object with GSON using retrofit
...
@feresr you can call setConverter(new GsonConverter(gson)) in Retrofit's RestAdapter.Builder class
– akhy
Jun 4 '14 at 10:27
2
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(Built-in) way in JavaScript to check if a string is a valid number
... numbers that may not be considered valid (overflow the type, too precise, etc). Also, regex is both slower and more complicated than just using the built-in mechanisms
– Joel Coehoorn
Dec 30 '14 at 18:18
...
“You have mail” message in terminal, os X [closed]
... Hitting any key will cause it to continue to display more of the message, etc., until you read the end of it. Or you can scroll with your mouse/touchpad. You may be able to hit q to abort viewing the message (I can't test that just now, but try it).To delete all messages, you'd use command d *. To ...
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
...e you find where the socket is being opened, add or edit the line to your /etc/my.cnf file with the path to the socket file:
socket=/var/lib/mysql/mysql.sock
Sometimes the system startup script that launched the command line executable specifies a flag --socket=path. This flag could override the ...
How to debug Apache mod_rewrite
...
For basic URL resolution, use a command line fetcher like wget or curl to do the testing, rather than a manual browser. Then you don't have to clear any cache; just up arrow and Enter in a shell to re-run your test fetches.
...
Adding local .aar files to Gradle build using “flatDirs” is not working
...ly after importing, matching the name of your aar file)
build
gradle
etc
This worked for me running Android Studio 0.8.0. Don't forget to synchronize gradle (using toolbar button or in File->Synchronize) after you do this.
(Thanks to Josiah for getting me going in the right direction)
(...
Virtual Serial Port for Linux
...0 to /dev/tnt7 where tnt0 is connected to tnt1, tnt2 is connected to tnt3, etc.
You may need to fix the file permissions to be able to use the devices.
edit:
I guess I was a little quick with my enthusiasm. While the driver looks promising, it seems unstable. I don't know for sure but I think it ...