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To ternary or not to ternary? [closed]
I'm personally an advocate of the ternary operator: () ? : ; I do realize that it has its place, but I have come across many programmers that are completely against ever using it, and some that use it too often.
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.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
...re below, showing that the version with an empty array consistently outperforms the version with a presized array. Note that if you can reuse an existing array of the correct size, the result may be different.
Benchmark results (score in microseconds, smaller = better):
Benchmark ...
Using comparison operators in Scala's pattern matching system
...ible to match on a comparison using the pattern matching system in Scala?
For example:
4 Answers
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0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
...0110011001100110011001101
which is greater than the exact value and the more precise approximation at 53 digits.
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Using numpy to build an array of all combinations of two arrays
...e parameters space of a 6 parameter function to study it's numerical behavior before trying to do anything complex with it so I'm searching for a efficient way to do this.
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How to asynchronously call a method in Java
I've been looking at Go's goroutines lately and thought it would be nice to have something similar in Java. As far as I've searched the common way to parallelize a method call is to do something like:
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Adding a cross-reference to a subheading or anchor in another page
...w to insert a cross-reference in a reST/Sphinx page to either a sub-header or anchor in another page in the same documentation set?
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What is the best way to ensure only one instance of a Bash script is running? [duplicate]
...] $
[Terminal #2] $ lockfile -r 0 /tmp/the.lock
[Terminal #2] lockfile: Sorry, giving up on "/tmp/the.lock"
[Terminal #1] $ rm -f /tmp/the.lock
[Terminal #1] $
[Terminal #2] $ lockfile -r 0 /tmp/the.lock
[Terminal #2] $
After /tmp/the.lock has been acquired your script will be the only one w...
Sorting a Python list by two fields
I have the following list created from a sorted csv
7 Answers
7
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Why is the String class declared final in Java?
...ed as immutable objects. You should read about immutability to understand more about it.
One advantage of immutable objects is that
You can share duplicates by pointing them to a single instance.
(from here).
If String were not final, you could create a subclass and have two strings that loo...