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How to get IP address of the device from code?
...aos.toByteArray(), "UTF-8") : new String(baos.toByteArray());
} finally {
try{ is.close(); } catch(Exception ignored){}
}
}
/**
* Returns MAC address of the given interface name.
* @param interfaceName eth0, wlan0 or NULL=use first interface
* @r...
How can I horizontally align my divs?
...gnments in CSS had been a nightmare. Luckily, a new standard is introduced by W3C in 2009: Flexible Box. There is a good tutorial about it here. Personally I find it much more logical and easier to understand than other methods.
.row {
width: 100%;
display: flex;
flex-direction: row;
...
Mockito match any class argument
...
Two more ways to do it (see my comment on the previous answer by @Tomasz Nurkiewicz):
The first relies on the fact that the compiler simply won't let you pass in something of the wrong type:
when(a.method(any(Class.class))).thenReturn(b);
You lose the exact typing (the Class<? ex...
Set value to null in WPF binding
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How to get the current user in ASP.NET MVC
In a forms model, I used to get the current logged-in user by:
20 Answers
20
...
Float right and position absolute doesn't work together
... nesting and a tricky margin:
function test() {
document.getElementById("box").classList.toggle("hide");
}
.right {
float:right;
}
#box {
position:absolute; background:#feb;
width:20em; margin-left:-20em; padding:1ex;
}
#box.hide {
display:none;
}
<div>
<div c...
Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
I've just started learning Ruby and Ruby on Rails and came across validation code that uses ranges:
5 Answers
...
best way to preserve numpy arrays on disk
...ere also is the possibility to "pickle" directly into a compressed archive by doing:
import pickle, gzip, lzma, bz2
pickle.dump( data, gzip.open( 'data.pkl.gz', 'wb' ) )
pickle.dump( data, lzma.open( 'data.pkl.lzma', 'wb' ) )
pickle.dump( data, bz2.open( 'data.pkl.bz2', 'wb' ) )
Appendix...
Is there a stopwatch in Java?
...ce can be substituted, for testing or performance reasons.
As documented by nanoTime, the value returned has no absolute meaning, and can only be interpreted as relative to another timestamp
returned by nanoTime at a different time. Stopwatch is a more
effective abstraction because it exposes ...
Angularjs - display current date
...t don't expect it to update value automatically. This value is not watched by angular so You have to trigger digest every time You want to get it updated (by $interval for example)...which is waste of resources (and also not "recommended" in docs). Of course You can get to use of combination with di...