Anthony walks you through the process of installing the Salesforce CLI in this lesson.
Refer to the Salesforce DX Setup Guide section for installing the Salesforce CLI here:
https://developer.salesforce.com/docs/atlas.en-us.sfdx_setup.meta/sfdx_setup/sfdx_setup_install_cli.htm
In this lesson, Anthony walks you through installing Visual Studio Code.
Go to https://code.visualstudio.com/ for the latest version of Visual Studio Code that you can install on your own computer.
In this lesson, Anthony directs you to where to download the latest Java release, which you can install on your computer. Go to https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.html to install the latest release of Java.
In this lesson, Anthony teaches you how to install Salesforce plugins into Visual Studio Code.