So I have a problem with highlighting specific dates on my JCalendar using the IDateEvaluator. I want it to be so that based on the dates that the user inserted into the database, the IDateEvaluator highlights it on the JCalendar. I tried to fix it based on all the answers from the previous posts here about this issue, but I was either never able to get the right date to be highlighted or the highlight just never worked.