Ubuntu – Android studio launch

I would suggest to check the installation directory for a readme or an uninstall script but in general: do what you did to install it in reverse order and delete everything you added as a setting or as a file on your system related to that installation.

Installations done with a tar file are mosttimes uninstalled with the rm command. You go to the directory where you went for this: "Unpack the downloaded Tar file, android-studio-ide--linux.zip, into an appropriate location for your applications" and rm the files and directories created here.

If you did "You may want to add android-studio/bin/ to your PATH environmental" too you will need to undo this alteration by deleting android-studio/bin/ from the file you added this PATH too.

You are using Java 9 and not Java 8 how your JAVA_HOME will make you credible. The option was abolished with Java 8 and even ignored at this time. With Java 9 is no longer the case, the start is aborted. Therefore use Java 8 via

sudo update-alternatives --config java

and/or remove the entries MaxPermSize=350m in the files

/opt/android-studio/bin/studio64.vmoptions

and

/opt/android-studio/bin/studio.vmoptions

Note, I have Android Studio installed in /opt