Wavemon installation on Mac

Does anyone have experience with Wavemon on a Mac? I have tried to install using the terminal. Below is the commands I tried and the responses I got. I can see Wavemon is on Github, but I am not experienced enough on how to get it from GitHub. If anyone can point me in a direction I would be grateful.

sudo apt install wavemon

The operation couldn’t be completed. Unable to locate a Java Runtime.
Please visit http://www.java.com for information on installing Java.

sudo apt-get install -y wavemon

sudo: apt-get: command not found