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No appenders could be found for logger(log4j)?
...ting and select your resource folder and click resources, it will automatically add your every resource to the classpath.
– Waqas
Aug 12 '16 at 7:04
1
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How to hash some string with sha256 in Java?
...
SHA-256 isn't an "encoding" - it's a one-way hash.
You'd basically convert the string into bytes (e.g. using text.getBytes(StandardCharsets.UTF_8)) and then hash the bytes. Note that the result of the hash would also be arbitrary binary data, and if you want to represent that in a strin...
AngularJS-Twig conflict with double curly braces
...erpolation by Twig so you have to be more careful with the contents, especially if you are using expressions.
If you still hate seeing all those curly braces, you can also create a simple macro to automate the process:
{% macro curly(contents) %}
{{ '{{' ~ contents ~ '}}' }}
{% endmacro %}
...
How to find all combinations of coins when given some dollar value
...or this, and contains a fairly extensive discussion of the problem. Essentially you define a polynomial where the nth coefficient is the number of ways of making change for n dollars.
Pages 4-5 of the writeup show how you can use Mathematica (or any other convenient computer algebra system) to comp...
How to check for DLL dependency?
...metimes when I'm doing a little project I'm not careful enough and accidentally add a dependency for a DLL that I am not aware of. When I ship this program to a friend or other people, "it doesn't work" because "some DLL" is missing. This is of course because the program can find the DLL on my syst...
How do I scroll the UIScrollView when the keyboard appears?
... handling of this issue is explained. You should have a look into it.
// Call this method somewhere in your view controller setup code.
- (void)registerForKeyboardNotifications
{
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWasShown:)
...
Iterating Over Dictionary Key Values Corresponding to List in Python
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ostergaard
2,76322 gold badges2525 silver badges3939 bronze badges
answered Sep 13 '11 at 22:22
Andrew ClarkAndrew C...
Check if all elements in a list are identical
... = next(iterator)
except StopIteration:
return True
return all(first == rest for rest in iterator)
One-liner:
def checkEqual2(iterator):
return len(set(iterator)) <= 1
Also one-liner:
def checkEqual3(lst):
return lst[1:] == lst[:-1]
The difference between the 3 versi...
javascript toISOString() ignores timezone offset [duplicate]
...u. Just a note: it does keep "Z" at the end of the string, which is technically wrong, but easy to edit out.
– Steve Gon
Feb 7 '19 at 19:22
2
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How to add title to subplots in Matplotlib?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...