Ben Crowhurst ben-crowhurst
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| #!/usr/bin/env python | |
| # MIT Licence | |
| # Gets radar overlays from the Australian Bureau of Meteorology radar pages | |
| # and creates an animated gif out of it. | |
| # Needs requests and pillow (the python packages) and ImageMagick the standalone graphics | |
| # program to be installed and available to work. | |
| # All radar images are copyright BoM, and this script should not be used for | |
| # commercial purposes, or possibly at all. |
iSergius
/ Java Collections Complexity cheatsheet
Created
September 3, 2016 14:52
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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 | |