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What are the differences between a HashMap and a Hashtable in Java?
...shMap 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 values.
One of HashMap's subclasses is LinkedHashMap, so in the event that you'd wa...
How do I trap ctrl-c (SIGINT) in a C# console app
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Actually, that article recommends P/Invoke, and CancelKeyPress is mentioned only briefly in the comments. A good article is codeneverwritten.com/2006/10/…
– bzlm
Aug 21 '10 at 7:55
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Is there a code obfuscator for PHP? [closed]
...of obfuscating it doesn't make it impossible to decrypt either, its just really hard to do so.
– xorinzor
Jul 24 '12 at 19:17
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Redirect to named url pattern directly from urls.py in django?
In Django, how can I do a simple redirect directly from urls.py? Naturally I am a well organized guy, favoring the DRY principle, so I would like to get the target based on it's named url pattern, rather than hard coding the url.
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How do I run a Ruby file in a Rails environment?
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#!/usr/bin/env /Users/me/rails_project/script/rails runner
Product.all.each { |p| p.price *= 2 ; p.save! }
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How to monitor the memory usage of Node.js?
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@GoloRoden npm install memwatch-next works fine. Here is the repo: github.com/marcominetti/node-memwatch
– fre2ak
Jun 19 '15 at 16:11
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Filtering fiddler to only capture requests for a certain domain
...y. I will not be able to open filers dialog when using fiddler programmatically. Edit the file and adding that is the way i've been looking for.
– m3nda
Feb 11 '15 at 12:55
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Count occurrences of a char in plain text file
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If all you need to do is count the number of lines containing your character, this will work:
grep -c 'f' myfile
However, it counts multiple occurrences of 'f' on the same line as a single match.
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How to not wrap contents of a div?
... This worked for me when other approaches listed above did not. All I needed was display: flex. Didn't need anything else.
– HerrimanCoder
Mar 1 '18 at 13:08
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Difference between return and exit in Bash functions
...a function to stop executing and return the value specified by n to its caller. If n is omitted, the return status is that of the last command executed in the function body.
... on exit [n]:
Cause the shell to exit with a status of n. If n is omitted, the exit status is that of the...