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Convert timestamp in milliseconds to string formatted time in Java
...a.util.Calendar, and java.text.SimpleDateFormat are now legacy, supplanted by the java.time classes built into Java 8 and later. See Tutorial by Oracle. See:stackoverflow.com/a/4142428/642706
– Basil Bourque
May 7 '18 at 20:06
...
How would Git handle a SHA-1 collision on a blob?
...ian version). I basically just reduced the hash size from 160-bit to 4-bit by applying the following diff and rebuilding git:
--- git-2.7.0~rc0+next.20151210.orig/block-sha1/sha1.c
+++ git-2.7.0~rc0+next.20151210/block-sha1/sha1.c
@@ -246,6 +246,8 @@ void blk_SHA1_Final(unsigned char hashou
blk...
Get current domain
...m looking at do. Sure, this gives me a point to continue looking from, but by itself this is really not a good answer...
– Jasper
Oct 27 '15 at 13:35
4
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How to split a delimited string into an array in awk?
...e" #note multiple :
b c
And even see what the delimiter was on every step by using its fourth parameter:
$ awk '{split($0, a, ":*", sep); print a[2]; print sep[1]}' <<< "a:::b c::d e"
b c
:::
Let's quote the man page of GNU awk:
split(string, array [, fieldsep [, seps ] ])
Divide string ...
Difference between numpy.array shape (R, 1) and (R,)
...t;>> a.shape
(12,)
Here the shape (12,) means the array is indexed by a single index which runs from 0 to 11. Conceptually, if we label this single index i, the array a looks like this:
i= 0 1 2 3 4 5 6 7 8 9 10 11
┌────┬────┬───...
How to explain Katana and OWIN in simple words and uses?
...at you might not even need (such as Web Forms or URL Authorization), which by default all run on every request, thus consuming resources and making ASP.NET applications in general lot slower than its counterparts such as Node.js for example.
OWIN itself does not have any tools, libraries or anythin...
What are fail-safe & fail-fast Iterators in Java
...d before too much damage can be done. In Java, a fail-fast iterator fails by throwing a ConcurrentModificationException.
The alternative to "fail-fast" and "weakly consistent" is semantic where the iteration fails unpredictably; e.g. to sometimes give the wrong answer or throw an unexpected except...
Confused by python file mode “w+”
...('somefile.txt', 'w+') as f:
# Note that f has now been truncated to 0 bytes, so you'll only
# be able to read data that you write after this point
f.write('somedata\n')
f.seek(0) # Important: return to the top of the file before reading, otherwise you'll just read an empty string
...
What does $@ mean in a shell script?
What does a dollar sign followed by an at-sign ( @ ) mean in a shell script?
6 Answers
...
The following untracked working tree files would be overwritten by merge, but I don't care
...rwrite untracked files
pull = fetch + merge, so we do git fetch followed by the git checkout -f, git checkout, git merge trick above.
git fetch origin # fetch remote commits
git checkout -f origin/mybranch # replace FOI with tracked upstream versions
git checkout mybranch # FOI are not in mybr...