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Use RSA private key to generate public key?
...if you have the private key then you can calculate (derive) the public key from it - which is what the 2nd command above does. It calculates, not extracts, the public key.
– steveayre
Feb 27 '13 at 14:59
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Merge (with squash) all changes from another branch as a single commit
In Git, is there a way to merge all changes from one branch into another, but squash to a single commit at the same time?
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How to compare files from two different branches?
...compares master to HEAD).
You may also be interested in mybranch...master (from git diff docs):
This form is to view the changes on the branch containing and up to the second <commit>, starting at a common ancestor of both <commit>. git diff A...B is equivalent to git diff $(git-merge-b...
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...
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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