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Is returning null bad design? [closed]
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I too do not like return null. You are separating root cause from symptom, making debugging harder. Either throw an exception (fail fast), or call a checker method that returns a boolean first (e.g. isEmpty()) and only if it is true then call the method. People argue agains...
Build unsigned APK file with Android Studio
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Task 'assemble' not found in root project 'bin'.
– nVentimiglia
Aug 10 '15 at 19:23
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What does the line “#!/bin/sh” mean in a UNIX shell script?
...rep echo
trainee 3036 2717 0 16:24 pts/0 00:00:00 /bin/sh ./echo.sh
root 3042 2912 0 16:24 pts/1 00:00:00 grep --color=auto echo
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What does $1 [QSA,L] mean in my .htaccess file?
...the request is done that matches ^(.+)$ (matches any URL except the server root), it will be rewritten as index.php?url=$1 which means a request for ollewill be rewritten as index.php?url=olle).
QSA means that if there's a query string passed with the original URL, it will be appended to the rewrit...
Maven project version inheritance - do I have to specify the parent version?
...ons IMO:
$ mvn versions:set -DgenerateBackupPoms=false
(do that in your root/parent pom folder).
Your POMs are parsed and you're asked which version to set.
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Soft keyboard open and close listener in an activity in Android
... adjustResize in the manifest. You can use a layout listener to see if the root layout of your activity is resized by the keyboard.
I use something like the following base class for my activities:
public class BaseActivity extends Activity {
private ViewTreeObserver.OnGlobalLayoutListener keyb...
Pycharm does not show plot
...t as plt
x = np.linspace(0, 6.28, 100)
plt.plot(x, x**0.5, label='square root')
plt.plot(x, np.sin(x), label='sinc')
plt.xlabel('x label')
plt.ylabel('y label')
plt.title("test plot")
plt.legend()
plt.show(block=True)
plt.interactive(False)
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How to create a remote Git repository from a local one?
... Of course, you will have to edit script (only once) to tell it server and Root path for all repositories.
Check here - https://github.com/skbobade/ocgi
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Select values from XML field in SQL Server 2008
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If you are able to wrap your XML in a root element - say then the following is your solution:
DECLARE @PersonsXml XML = '<persons><person><firstName>Jon</firstName><lastName>Johnson</lastName></person>
<person><...
What is so special about Generic.xaml?
...ething special, two conditions must be met:
It must be in the Themes sub-root folder in the project
The assembly must be marked with the ThemeInfoAttribute (usually in AssemblyInfo.cs)
Then it serves as the default lookup location for any default styles you wish to apply to your Controls. Note a...