Installation:
Even if you are the only developer working on a code base, it is still good to put it into version control (SCM). Mistakes happen. You may start working on a change and not like how it turned out. Even if all goes well, with version control, you can look back at what has changed, add tags/labels for specific milestones, etc.
With git, you commit a full change (likely multiple files) at a time.
Once installed, you can either use git via the command line, or IDEs like IntelliJ will have GUI menus that you can select, instead of remembering the command line arguments needed directly.
I am choosing git for these posts. It is what I use in the https://github.com/codingchica/java101 and other examples.
Coding Chica 
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