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from list of integers, get number closest to a given value
...uilt-in min() function, to find the element which has the minimum distance from the specified number.
>>> min(myList, key=lambda x:abs(x-myNumber))
4
Note that it also works with dicts with int keys, like {1: "a", 2: "b"}. This method takes O(n) time.
If the list is already sorted, or...
Preferred way of loading resources in Java
...t...
There are two things that getResource/getResourceAsStream() will get from the class it is called on...
The class loader
The starting location
So if you do
this.getClass().getResource("foo.txt");
it will attempt to load foo.txt from the same package as the "this" class and with the clas...
Convert java.util.Date to java.time.LocalDate
...lso does not contain any information about the time-zone. Thus, to convert from an Instant to a local date it is necessary to specify a time-zone. This might be the default zone - ZoneId.systemDefault() - or it might be a time-zone that your application controls, such as a time-zone from user prefer...
What is the reason behind “non-static method cannot be referenced from a static context”? [duplicate
...to any object. Hence there is no way a non-static method can be referenced from static context.
– Saathvik
Feb 22 '18 at 7:00
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java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();
...
I got this exception because I was trying to make a Toast popup from a background thread.
Toast needs an Activity to push to the user interface and threads don't have that.
So one workaround is to give the thread a link to the parent Activity and Toast to that.
Put this code in the threa...
What is the difference between memmove and memcpy?
...ake the same assumptions.
For example, memcpy might always copy addresses from low to high. If the destination overlaps after the source, this means some addresses will be overwritten before copied. memmove would detect this and copy in the other direction - from high to low - in this case. However...
Determine which JAR file a class is from
...
This makes assumptions abut the mapping from class name to class file. Will it work properly for anonymous classes? Nested classes?
– Thorbjørn Ravn Andersen
Dec 31 '09 at 13:40
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Create a submodule repository from a folder and keep its git commit history
...epository for this demo application and make it a subpackage submodule from main repository without losing its commit history.
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How do I remove a big file wrongly committed in git [duplicate]
...ere http://dalibornasevic.com/posts/2-permanently-remove-files-and-folders-from-a-git-repository
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Python multiprocessing pool.map for multiple arguments
...a sequence of argument tuples. It then automatically unpacks the arguments from each tuple and passes them to the given function:
import multiprocessing
from itertools import product
def merge_names(a, b):
return '{} & {}'.format(a, b)
if __name__ == '__main__':
names = ['Brown', 'Wil...