Javatar shell works like a normal shell terminal. The difference between Javatar shell and others shells is that Javatar shell will accept your input by pressing the Enter/Return keys. This gives you the ability to read in your content on the current line.
While Javatar shell is running, you can close the view to force quit any application that is still running in the shell.
Javatar cannot guarantee that output or input will be correct when you type in the Javatar shell while it is still printing an output since Javatar shell did not set the view to read-only while printing.