Comparing Timestamps in Java to get difference in days [duplicate]

Question

I'm retrieving two timestamps from a database (check_in and check_out). I need to compare the two to find out how many days have passed between the two timestamps. How can this be done in Java?

Answer 1

Just subtract check_out and check_in, and convert from whatever units you're in to days. Something like

//pseudo-code
diff_in_millis = Absolute Value Of ( check_out - check_in ) ;
diff_in_days = diff_in_millis / (1000  * 60 * 60 * 24);