Learn new pieces of information like vocabulary. Add new vocabs which will be forgotten by the tool if you learned them.
git clone git@github.com:sli67/vocabtrainer.git
cd vocabtrainer/
$JAVA_HOME/bin/javafxpackager -createjar -appclass de.biosoft.fxvocabtrainer.VocabTrainerApp -srcdir target/classes/ -outdir target -outfile vocabtrainer -v
java -jar target/vocabtrainer.jar &