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Remove last character of a StringBuilder?
...efix = ",";
sb.append(serverId);
}
Alternatively, use the Joiner class from Guava :)
As of Java 8, StringJoiner is part of the standard JRE.
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How to format date and time in Android?
...udes the date, not the time as the original question stated. Use DateUtils from the same package instead, see stackoverflow.com/questions/2983920/…
– Asmo Soinio
Dec 2 '11 at 13:43
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Add Bootstrap Glyphicon to Input Box
...tAwesome introduced breaking changes in Version 4. If you want to upgrade from 3.x to 4.x, you have to change <i class="icon-user"></i> to <i class="fa fa-user"></i>. Anytime you're thinking about updating external libraries, be sure to read the release notes and new docume...
Java Generics (Wildcards)
...deo talk where he mentions the Producer extends Consumer super mnemonic.
From the presentation slides:
Suppose you want to add bulk methods to Stack<E>
void pushAll(Collection<? extends E> src);
– src is an E producer
void popAll(Collection<? super E> dst);
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What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
...
For .Net <= 4.0 Use the TimeSpan class.
TimeSpan t = TimeSpan.FromSeconds( secs );
string answer = string.Format("{0:D2}h:{1:D2}m:{2:D2}s:{3:D3}ms",
t.Hours,
t.Minutes,
t.Seconds,
t.Milliseconds);
(As noted by Inder ...
python requests file upload
... the optional headers.
If you are meaning the whole POST body to be taken from a file (with no other fields specified), then don't use the files parameter, just post the file directly as data. You then may want to set a Content-Type header too, as none will be set otherwise. See Python requests - P...
How do I read the first line of a file using cat?
...Right; in this case, clearing IFS prevents leading and trailing whitespace from being stripped from the string that's read.
– Charles Duffy
May 24 '18 at 15:39
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Include intermediary (through model) in responses in Django Rest Framework
...field in the serialiser by forcing it to point to the reverse relationship from the through model. I'm not very much into DRF implementation details, but probably with model introspection it could be handed automatically. just some food for thought :)
– gru
Apr...
Do you need to dispose of objects and set them to null?
...o properly explain that aspect of CLR, I'll need to explain a few concepts from C++ and C#.
Actual variable scope
In both languages the variable can only be used in the same scope as it was defined - class, function or a statement block enclosed by braces. The subtle difference, however, is that i...
Iterating Over Dictionary Key Values Corresponding to List in Python
... to iterate over their items. Also, with pattern matching and the division from __future__ you can do simplify things a bit.
Finally, you can separate your logic from your printing to make things a bit easier to refactor/debug later.
from __future__ import division
def Pythag(league):
def win...