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How to format Joda-Time DateTime to only mm/dd/yyyy?
I have a string " 11/15/2013 08:00:00 ", I want to format it to " 11/15/2013 ", what is the correct DateTimeFormatter pattern?
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Determine if a String is an Integer in Java [duplicate]
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341
The most naive way would be to iterate over the String and make sure all the elements are vali...
How to call base.base.method()?
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answered Sep 14 '15 at 10:23
EvkEvk
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How to select the row with the maximum value in each group
...t]$V1]
# Subject pt Event
# 1: 1 5 2
# 2: 2 17 2
# 3: 3 5 2
If you'd like just the first max value of pt:
group[group[, .I[which.max(pt)], by=Subject]$V1]
# Subject pt Event
# 1: 1 5 2
# 2: 2 17 2
# 3: 3 5 2
In this case, it ...
Getting the application's directory from a WPF application
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331
One method:
System.AppDomain.CurrentDomain.BaseDirectory
Another way to do it would be:
Sy...
pip install mysql-python fails with EnvironmentError: mysql_config not found
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1438
It seems mysql_config is missing on your system or the installer could not find it.
Be sure mys...
High performance fuzzy string comparison in Python, use Levenshtein or difflib [closed]
...comparison of Levenshtein and Difflib similarity, I calculated both for ~2.3 million book titles:
import codecs, difflib, Levenshtein, distance
with codecs.open("titles.tsv","r","utf-8") as f:
title_list = f.read().split("\n")[:-1]
for row in title_list:
sr = row.lower().spl...
What is a “surrogate pair” in Java?
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131
The term "surrogate pair" refers to a means of encoding Unicode characters with high code-point...
What does -> mean in Python function definitions?
I've recently noticed something interesting when looking at Python 3.3 grammar specification :
7 Answers
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Grab a segment of an array in Java without creating a new array on heap
... was introduced in Java 6 (late 2006?):
byte [] a = new byte [] {0, 1, 2, 3, 4, 5, 6, 7};
// get a[4], a[5]
byte [] subArray = Arrays.copyOfRange(a, 4, 6);
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