J4 Component example - Mywalks
From Joomla! Documentation
The J4xdemos-com-mywalks Example Component Tutorial
The explanation of this code is split into two parts:
It should be possible to take the tutorials in either order. Part 1 contains whole code files with some explanations whilst part 2 contains more code fragments with explanations.
The installation zip file is available from Github:
If installation fails you may have to create the tables and sample data manually - see the sql files within the zip file. Some of the explanations expect you to look at the installed code or unpacked zip file.