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Download a file with Android, and showing the progress in a ProgressDialog
...f total length is known
publishProgress((int) (total * 100 / fileLength));
output.write(data, 0, count);
}
} catch (Exception e) {
return e.toString();
} finally {
try {
if (output != null)
...
How do I make a transparent border with CSS?
...ase you can use rgba, where a stands for alpha.
.your_class {
height: 100px;
width: 100px;
margin: 100px;
border: 10px solid rgba(255,255,255,.5);
}
Demo
Here, you can change the opacity of the border from 0-1
If you simply want a complete transparent border, the best thing to...
Best data type for storing currency values in a MySQL database
... way). To get an idea, take the amount of the transactions (let's suppose $100.23) and multiple by 100, 1000, 10000, etc. to get the accuracy you need. So if you only need to store cents and can safely round up or down, just multiply by 100. In my example, that would make 10023 as the integer to sto...
Force R not to use exponential notation (e.g. e+10)?
... than ‘scipen’ digits wider.
Example:
R> ran2 <- c(1.810032e+09, 4)
R> options("scipen"=-100, "digits"=4)
R> ran2
[1] 1.81e+09 4.00e+00
R> options("scipen"=100, "digits"=4)
R> ran2
[1] 1810032000 4
That said, I still find it fudgeworthy. The most direct w...
java get file size efficiently
...");
}
}
return (System.nanoTime() - before) / 1000;
}
}
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MySql: Tinyint (2) vs tinyint(1) - what is the difference?
...-+-----+-----+-----+
| 1 | 1 | 1 | 1 |
| 10 | 10 | 10 | 10 |
| 100 | 100 | 100 | 100 |
Here a, b and c are using TINYINT(1), TINYINT(2) and TINYINT(3) respectively. As you can see, it pads the values on the left side using the display width.
It's important to note that it does not aff...
How to terminate the script in JavaScript?
...eyword like this:
throw new Error();
You can easily test this:
var m = 100;
throw '';
var x = 100;
x
>>>undefined
m
>>>100
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How unique is UUID?
...r words, only after generating 1 billion UUIDs every
second for the next 100 years, the probability of creating just one
duplicate would be about 50%.
Caveat:
However, these probabilities only hold when the UUIDs are generated
using sufficient entropy. Otherwise, the probability of dupli...
how do you filter pandas dataframes by multiple columns
...one from @redreamality):
import pandas as pd
import numpy as np
length = 100_000
df = pd.DataFrame()
df['Year'] = np.random.randint(1950, 2019, size=length)
df['Gender'] = np.random.choice(['Male', 'Female'], length)
%timeit df.query('Gender=="Male" & Year=="2014" ')
%timeit df[(df['Gender']=...
Possible to make labels appear when hovering over a point in matplotlib?
...
cmap = plt.cm.RdYlGn
fig,ax = plt.subplots()
sc = plt.scatter(x,y,c=c, s=100, cmap=cmap, norm=norm)
annot = ax.annotate("", xy=(0,0), xytext=(20,20),textcoords="offset points",
bbox=dict(boxstyle="round", fc="w"),
arrowprops=dict(arrowstyle="->"))
annot....