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Git Push error: refusing to update checked out branch
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There are two types of repositories: bare and non-bare
Bare repositories do not have a working copy and you can push to them. Those are the types of repositories you get in Github! If you want to create a bare repository, you can use
git init --bare
So, in short, you can't push to a non-bare re...
Constructor overloading in Java - best practice
... if (r2 == null) {
r2 = new Resource();
}
// do whatever with resources
}
}
From a unit testing standpoint, it'll become easy to test the class since you can put in the resources into it. If the class has many resources (or collaborators as some OO-geeks call it)...
Are lists thread-safe?
...= 1
is not guaranteed to actually increase L[0] by one if another thread does the same thing, because += is not an atomic operation. (Very, very few operations in Python are actually atomic, because most of them can cause arbitrary Python code to be called.) You should use Queues because if you ju...
Will using 'var' affect performance?
...inference. This could cause elusive/edge case runtime errors if the value doesn't fit. For that reason, it may still be a good idea to be explicit when the value doesn't have an explicit type. So for example, var x = new List<List<Dictionary<int, string>()>()>() would be accepta...
How to get the device's IMEI/ESN programmatically in android?
...ion android:name="android.permission.READ_PHONE_STATE" />
in order to do this.
That being said, be careful about doing this. Not only will users wonder why your application is accessing their telephony stack, it might be difficult to migrate data over if the user gets a new device.
Update: As...
Changing default encoding of Python?
...function that was deleted from sys:
import sys
# sys.setdefaultencoding() does not exist, here!
reload(sys) # Reload does the trick!
sys.setdefaultencoding('UTF8')
(Note for Python 3.4+: reload() is in the importlib library.)
This is not a safe thing to do, though: this is obviously a hack, sin...
SQL Server database backup restore on lower version
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No, is not possible to downgrade a database. 10.50.1600 is the SQL Server 2008 R2 version. There is absolutely no way you can restore or attach this database to the SQL Server 2008 instance you are trying to restore on (10.00.1600 is SQL Server 200...
How to disable all caps menu titles in Visual Studio
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For VS Express 2012 for Windows Desktop, use WDExpress instead of VSWinExpress
– jumpinjackie
Sep 14 '12 at 4:34
8
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Abstraction VS Information Hiding VS Encapsulation
...hiding, which
is the process of hiding all of the secrets of object that do not
contribute to its essential characteristics.
In other words: abstraction = the object externally; encapsulation (achieved through information hiding) = the object internally,
Example:
In the .NET Framework, the S...
How to handle exceptions in a list comprehensions?
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I do not see "not using list comprehensions" as a part of the answer to "how to handle exceptions in list comprehensions", but I guess you could reasonably see it as a possible consequence of "lexically IN the LC, it's not poss...