$ sudo apt-get update
$ sudo apt-get install libfontchooser-java 

libfontchooser-java is installed in your system.

Make ensure the libfontchooser-java package were installed using the commands given below,

$ sudo dpkg-query -l | grep libfontchooser-java *

You will get with libfontchooser-java package name, version, architecture and description in a table

libfontchooser-java package basic information: