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In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
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A simple approach would be to check how many digits are output by Integer.toHexString() and ad...
How can I log the stdout of a process started by start-stop-daemon?
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Change the name of a key in dictionary
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Test if string is a number in Ruby on Rails
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How do you extract a column from a multi-dimensional array?
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>>> import numpy as np
>>> A = np.array([[1,2,3,4],[5,6,7,8]])
>>> A
array([[1, 2, 3, 4],
[5, 6, 7, 8]])
>>> A[:,2] # returns the third columm
array([3, 7])
See also: "numpy.arange" and "reshape" to allocate memory
Example: (Allocating a ar...
CSS last-child(-1)
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You can use :nth-last-child(); in fact, besides :nth-last-of-type() I don't know what else you ...
Get Unix Epoch Time in Swift
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You can simply use NSDate's timeIntervalSince1970 function.
let timeInterval = NSDate().time...
Bash: If/Else statement in one line
...e it is called some_process ) is running on a server. If it is, then echo 1, otherwise echo 0.
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How do you get the logical xor of two variables in Python?
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If you're already normalizing the inputs to booleans, then != is xor.
bool(a) != bool(b)
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Can Java 8 code be compiled to run on Java 7 JVM?
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No, using 1.8 features in your source code requires you to target a 1.8 VM. I just tried the n...