I'm doing a program in which you need the user to enter the date of your appointment, and what happens my application will notify you two days before the appointment so that the user remembers their appointment. >
First I wanted to know how I get the calendar in the java class.
After how do I get the date that the user put in the calendar.
And if possible you could try to show me how I can get the app to check the date and when it's two days before it passes a notification.
Thank you!