I wonder if anyone can help me out. I have to make a code for a certain type of bar, where the prices change everytime someone buys a drink (example: customer buys 3 beers, the prices of all drinks change, 30 seconds later 5 lemonades are sold, prices of all drinks change again). I would like to make a dynamic price list that changes every time after a purchase (or if that isn't possible: that refreshes every 5 seconds (for example)).
Everytime a purchase has been made, I change the prices in my database and then I execute a query to get the new prices. Normally I would use setText() to show the prices on the screen, but this doesn't work because the GUI where I change the prices is another then the GUI where I have to show them.
Is there anyone who has a clue what I have got to do?
Thanks in advance!