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What are the differences between a HashMap and a Hashtable in Java?
...table in Java:
Hashtable is synchronized, whereas HashMap is not. This makes HashMap better for non-threaded applications, as unsynchronized Objects typically perform better than synchronized ones.
Hashtable does not allow null keys or values. HashMap allows one null key and any number of null va...
Capitalize the first letter of both words in a two word string
...e final count
"Zip Code" "State" "Final Count"
Edit This works for any string, regardless of word count:
simpleCap("I like pizza a lot")
[1] "I Like Pizza A Lot"
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Bash script to set up a temporary SSH tunnel
...
You can do this cleanly with an ssh 'control socket'. To talk to an already-running SSH process and get it's pid, kill it etc. Use the 'control socket' (-M for master and -S for socket) as follows:
$ ssh -M -S my-ctrl-socket -fnNT -L 50000:localhost:3306 jm@sampledomain....
Location Manager Error : (KCLErrorDomain error 0)
...ccurs if you have Scheme/Edit Scheme/Options/Allow Location Simulation checked but don't have a default location set. I'm sure there are other causes as well though.
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How do I dynamically assign properties to an object in TypeScript?
...gramatically assign a property to an object in Javascript, I would do it like this:
23 Answers
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Random shuffling of an array
...sing Collections to shuffle an array of primitive types is a bit of an overkill...
It is simple enough to implement the function yourself, using for example the Fisher–Yates shuffle:
import java.util.*;
import java.util.concurrent.ThreadLocalRandom;
class Test
{
public static void main(String...
How can I manually generate a .pyc file from a .py file
...inal. The following command will go recursively into sub directories and make pyc files for all the python files it finds. The compileall module is part of the python standard library, so you don't need to install anything extra to use it. This works exactly the same way for python2 and python3.
pyt...
Watch multiple $scope attributes
...
Paolo MorettiPaolo Moretti
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Best way to hide a window from the Alt-Tab program switcher?
...eloper for several years now and this is still one of those things I don't know how to do properly. It's easy to hide a window from the taskbar via a property in both Windows Forms and WPF, but as far as I can tell, this doesn't guarantee (or necessarily even affect) it being hidden from the Alt + ...
How can I view an old version of a file with Git?
...ven in paths relative to the current directory. For more information, check out the man page for git-show.
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