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Exception thrown inside catch block - will it be caught again?
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No. It's very easy to check.
public class Catch {
public static void main(String[] args) {...
How to access the ith column of a NumPy multidimensional array?
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>>> test[:,0]
array([1, 3, 5])
Similarly,
>>> test[1,:]
array([3, 4])
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What is the fastest way to get the value of π?
...t π I know of is the one with the digits hard coded. Looking at Pi and Pi[PDF], there are a lot of formulae.
Here is a method that converges quickly — about 14 digits per iteration. PiFast, the current fastest application, uses this formula with the FFT. I'll just write the formula, since the co...
How to call getClass() from a static method in Java?
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In Java7+ you can do this in static methods/fields:
MethodHandles.lookup().lookupClass()
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What is the difference between attribute and property? [closed]
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These words existed way before Computer Science came around.
Attribute is a quality or object...
java.net.ConnectException: Connection refused
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Jon SkeetJon Skeet
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Counting the number of True Booleans in a Python List
...mean ± std. dev. of 7 runs, 1000000 loops each)
In [4]: %timeit sum(x)
1.72 µs ± 161 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)
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scp or sftp copy multiple files with single command
...sure where this should work. ``` (venv) ➜ git:(master) ✗ scp root@172.29..xxx.yyy:"/usr/local/bin/kubectl /root/.kube/config" /tmp/ root@172.29..xxx.yyy's password: protocol error: filename does not match request ```
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How can I set the default value for an HTML element?
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You can do it like this:
<select name="hall" id="hall">
<option> 1 </option...
In javascript, is an empty string always false as a boolean?
...from http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
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