This repos provide Lanterna sample source by Groovy.
Java library for creating text-based GUIs
Lanterna is a Java library allowing you to write easy semi-graphical user interfaces in a text-only environment, very similar to the C library curses but with more functionality. Lanterna is supporting xterm compatible terminals and terminal emulators such as konsole, gnome-terminal, putty, xterm and many more. One of the main benefits of lanterna is that it's not dependent on any native library but runs 100% in pure Java.
$ git clone https://github.com/h1romas4/lanterna-sample.git
$ cd lanterna-sample
$ ./gradlew shadowJar
$ java -jar build/libs/lanterna-sample-all.jar