cd /Applications/
rm -r IntelliJ\ IDEA.app/
rm -r /Users/apple/Library/Logs/IntelliJIdea2019.3/
rm -r /Users/apple/Library/Preferences/IntelliJIdea2019.3/
rm -r /Users/apple/Library/Application\ Support/IntelliJIdea2019.3/
rm -r /Users/apple/Library/Caches/IntelliJIdea2019.3/