# Looking for more resources about ArrayLists

**URL:** https://discourse.processing.org/t/looking-for-more-resources-about-arraylists/21025
**Category:** Beginners
**Created:** [May 18, 2020, 5:43pm UTC](https://discourse.processing.org/t/looking-for-more-resources-about-arraylists/21025 "2020-05-18T17:43:28Z")
**Posts on this page:** 1
**Showing post:** 23

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### Author: ![debxyz](https://avatars.discourse-cdn.com/v4/letter/d/58956e/32.png) [@debxyz](https://discourse.processing.org/u/debxyz)
#### Post date: [May 23, 2020, 9:20pm UTC](https://discourse.processing.org/t/looking-for-more-resources-about-arraylists/21025/23 "2020-05-23T21:20:17Z")

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My thinking is to make grids that are contained within selected grid cells.  
Pseudocode:  
1/ make a base grid of cells  
2/ then loop thru the base grid cells  
3/ determine which grid cells would then be subdivided into a grid of smaller grid cells via random, modulo, probability, or another determinant  
4/ then make a grid of cells that is contained within a cell’s width and height

I think I understand how to do the first three steps. I’m not sure how to implement step #4.

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