Bought one of these on Swedish Craigslist: https://www.walmart.com/ip/Star-Micronics-TSP654IIU-24-GRY-S...
Which was the same they used at my university in the cafeteria. Managed to plagiarise the same receipt we got when ordering food (which you needed to show the kitchen to get a plate of food) and was thus able to eat for free for the rest of my enrollment.
Not even my professors could teach me to do GUIs in Java but this thing sure was ‘Swinging’