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Best way to “negate” an instanceof
...;
}
public static ObjectUtils thisObj(Object obj){
return new ObjectUtils(obj);
}
public boolean isNotA(Class<?> clazz){
return !clazz.isInstance(obj);
}
}
And then...
import static notinstanceof.ObjectUtils.*;
public class Main {
public static vo...
Getting vertical gridlines to appear in line plot in matplotlib
I want to get both horizontal and vertical grid lines on my plot but only the horizontal grid lines are appearing by default. I am using a pandas.DataFrame from an sql query in python to generate a line plot with dates on the x-axis. I'm not sure why they do not appear on the dates and I have trie...
What's the recommended way to connect to MySQL from Go?
...= con.QueryRow("select mdpr, x, y, z from sometable where id=?", id)
cb := new(SomeThing)
err := row.Scan(&cb.Mdpr, &cb.X, &cb.Y, &cb.Z)
Select multiple rows and build an array with results :
rows, err := con.Query("select a, b from item where p1=? and p2=?", p1, p2)
if err != nil...
Using relative URL in CSS file, what location is it relative to?
...have a directory "/css/" where I put all the CSS data. Now, I want to test new features on the website in a separate folder. It gets hard to test, e.g., new background images in the test folder. It all depends on your needs...
– Diego
May 20 '14 at 16:45
...
Deep copy of a dict in python
...
Python 3.x
from copy import deepcopy
my_dict = {'one': 1, 'two': 2}
new_dict_deepcopy = deepcopy(my_dict)
Without deepcopy, I am unable to remove the hostname dictionary from within my domain dictionary.
Without deepcopy I get the following error:
"RuntimeError: dictionary changed size du...
Open-Source Examples of well-designed Android Applications? [closed]
...k at this list:
14 Great Android apps that are also open source
For me, NewsBlur, Hacker News Reader and Astrid were the most helpful.
Still, I don't know whether they are "suitable for basic learning".
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How to create EditText with rounded corners? [closed]
... and modify it to point to your more-rounded nine-patch PNG files
Use that new StateListDrawable as the background for your EditText widget
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fol...
Drawable image on a canvas
...Then make the bitmap mutable and create a canvas over it:
Canvas canvas = new Canvas(bitmap.copy(Bitmap.Config.ARGB_8888, true));
You then can draw on the canvas.
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How to handle WndProc messages in WPF?
...uded below)
// 'this' is a Window
HwndSource source = HwndSource.FromHwnd(new WindowInteropHelper(this).Handle);
source.AddHook(new HwndSourceHook(WndProc));
private static IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
// do stuff
return IntPtr.Ze...
Changing variable names in Vim
...tern that match variable name (that name you were on before pressing gd).
/newname/gc<CR> - will initiate search and replace with confirmation on every match.
Now you have to record a macros or even better - map a key.
Here are the final mappings:
" For local replace
nnoremap gr gd[{V%::s/&...