(Java / Android) Calculate days between 2 dates and present the result in a specific format

Question

I am trying to do calculate days between 2 dates as follow:

1. Obtain current date
2. Obtain past OR future date
3. Calculate the difference between n

Answer 1

long delta = Date2.getTime() - Date1.getTime();

new Date(delta);

From here, you just pick your format. Maybe use a date formatter? As for determing the future stuff and all that, you could just see if the delta is positive or negative. A negative delta will indicate a past event.