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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();
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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...
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 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...
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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Determine which JAR file a class is from
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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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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...
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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Git branch strategy for small dev team [closed]
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You might benefit from the workflow Scott Chacon describes in Pro Git. In this workflow, you have two branches that always exist, master and develop.
master represents the most stable version of your project and you only ever deploy to produc...
Programmatically access currency exchange rates [closed]
...S dollars or Euros so they don't have to make the mental effort to convert from Australian dollars.
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