Install JD-GUI on Mac OSX

About the App

App name: JD-GUI

App description: jd-gui (App: JD-GUI.app)

App website: http://jd.benow.ca/

Install the App

Press 

Command+Space

 and
type Terminal and press enter/return key.

Run in Terminal app:

ruby -e
"$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null ; brew install caskroom/cask/brew-cask 2> /dev/null

and press enter/return key. Wait for the command to finish.

Run:

brew cask
install jd-gui

Done! You can now use JD-GUI.