Lakhov Victor VicVicos
psayre23
/ gist:c30a821239f4818b0709
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December 29, 2025 11:40
Runtime Complexity of Java Collections
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| Below are the Big O performance of common functions of different Java Collections. | |
| List | Add | Remove | Get | Contains | Next | Data Structure | |
| ---------------------|------|--------|------|----------|------|--------------- | |
| ArrayList | O(1) | O(n) | O(1) | O(n) | O(1) | Array | |
| LinkedList | O(1) | O(1) | O(n) | O(n) | O(1) | Linked List | |
| CopyOnWriteArrayList | O(n) | O(n) | O(1) | O(n) | O(1) | Array |
Zodiac1978
/ .htaccess
Last active
December 8, 2024 11:42
Make your Website faster - a safe htaccess way
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| # | |
| # Sources: | |
| # http://stackoverflow.com/questions/7704624/how-can-i-use-gzip-compression-for-css-and-js-files-on-my-websites | |
| # http://codex.wordpress.org/Output_Compression | |
| # http://www.perun.net/2009/06/06/wordpress-websites-beschleuinigen-4-ein-zwischenergebnis/#comment-61086 | |
| # http://www.smashingmagazine.com/smashing-book-1/performance-optimization-for-websites-part-2-of-2/ | |
| # http://gtmetrix.com/configure-entity-tags-etags.html | |
| # http://de.slideshare.net/walterebert/die-htaccessrichtignutzenwchh2014 | |
| # http://de.slideshare.net/walterebert/mehr-performance-fr-wordpress | |
| # https://andreashecht-blog.de/4183/ |