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Java enum - why use toString instead of name
... If your code breaks when someone correctly changes the toString() return, then it was already broken.
From the javadoc (emphasis mine) :
Returns a string representation of the object. In general, the
toString method returns a string that "textually represents" this
object. The result shoul...
Running two projects at once in Visual Studio
...g from Solution Explorer. In Solution Explorer right click on the project, then Debug-> Start new Instance. So with one instance of VS one can debug loads of instances at once.
– Max
Oct 8 '10 at 10:13
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CSS: how to position element in lower right?
...>
<p class="bet_time">Bet 5 days ago</p>
</div>
Then, with CSS, you can make that text appear in the bottom right like so:
.box {
position:relative;
}
.bet_time {
position:absolute;
bottom:0;
right:0;
}
The way this works is that absolutely positioned el...
In Python, what is the difference between “.append()” and “+= []”?
...ence? For instance let a = [], b = [4,5,6], here if you do c = a.append(b) then c would be a list of list [[4,5,6]] while c += b; would lead to a simple list c = [4,5,6].
– rph
Jul 4 '16 at 12:59
...
AsyncTask and error handling on Android
... hold onto the Throwable or Exception in the AsyncTask instance itself and then do something with it in onPostExecute(), so my error handling has the option of displaying a dialog on-screen.
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Remove redundant paths from $PATH variable
... for DIR in ${!PATHVARIABLE} ; do
if [ "$DIR" != "$1" ] ; then
NEWPATH=${NEWPATH:+$NEWPATH:}$DIR
fi
done
export $PATHVARIABLE="$NEWPATH"
}
This is intended to be used with these functions for adding to the path, so that you don't d...
Difference between EXISTS and IN in SQL?
...o i.e. select case when exists (select 1 from emp where salary > 1000) then 1 else 0 end as sal_over_1000
– smooth_smoothie
Aug 25 '16 at 4:17
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How to keep environment variables when using sudo
... -- say, export PATH=myPath:$PATH. If I type sudo -E bash -c 'echo $PATH', then PATH does not contain myPath probably because sudo has already disabled the local value of PATH before calling bash. Rather, I found the answer below stackoverflow.com/a/33183620/5459638 effective, that is sudo PATH=$PAT...
How do I know if a generator is empty from the start?
...e:
first, mysequence = res
# Do something with first, maybe?
# Then iterate over the sequence:
for element in mysequence:
# etc.
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Which exception should I raise on bad/illegal argument combinations in Python?
...xample a function where the arguments must be an even number of arguments, then you should raise a TypeError, to be consistent. And don't make your own class unless a) you have a use case or b) you are exporting the library to be used by others. Premature functionality is the death of code.
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