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Why can't I define a static method in a Java interface?
...d. I believe static is a crummy term in languages anyway, and has been stretched too far as is. So having it by itself is already sketchy. See my example above stackoverflow.com/questions/512877/… {shrug}.
– user4229245
Sep 2 '16 at 18:14
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Preventing an image from being draggable or selectable without using JS
... 2012 */
-webkit-user-drag: none; /* Prevents dragging of images/divs etc */
user-drag: none;
}
JS:
var makeUnselectable = function( $target ) {
$target
.addClass( 'unselectable' ) // All these attributes are inheritable
.attr( 'unselectable', 'on' ) // For IE9 - This...
Right way to reverse pandas.DataFrame?
...a time series while remaining agnostic to the time step (day, month, year, etc.). So you may be working with a data frame, do a transformation on it, which messes up the indexing. It’s common to thus reindex the frame.
– Cybernetic
Jul 12 at 0:23
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matplotlib does not show my drawings although I call pyplot.show()
...ed all the different backends that people on the web suggest (Qt4Agg, GTK, etc.), and they all failed (i.e. when I tried to import matplotlib.pyplot, I get ImportError because it's trying to import some dependency that's missing). I then researched how to install those dependencies, but it just mad...
Git: How to remove file from historical commit?
...ociated with them. This means that stuff like signed commits, commit notes etc. are preserved
filter-branch keeps backups too, so the size of the repo won't decrease immediately unless you expire the reflogs and garbage collect:
rm -Rf .git/refs/original # careful
git gc --aggressive --prun...
How to set OnClickListener on a RadioButton in Android?
...is to change and update the View accordingly (saves you having 2 or 3 or 4 etc listeners).
RadioGroup radioGroup = (RadioGroup) findViewById(R.id.yourRadioGroup);
radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
@Override
public void onCheck...
iOS - forward all touches through a view
...iew to stop the behavior of other views underneath, which are scrollviews, etc. How can I forward all the touches through this overlay view? It is a subcalss of UIView.
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What is the dual table in Oracle?
... as sysdate. Also helps you to check if Oracle is up and check sql syntax, etc.
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Why does pylint object to single character variable names?
...ic names I've used have been like ratio, denominator, obj_generator, path, etc. It may take an extra second or two to type them out, but the time you save trying to figure out what you wrote even half an hour from then is well worth it.
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What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
...what you think. System calls, which include I/O calls such as read, write, etc. are executed by jumping into kernel code and executing that.
If wall clock time < CPU time, then you're executing a program in parallel. If wall clock time > CPU time, you're waiting for disk, network or other dev...