Difference in time between two dates in java

Question

I have to find the difference in time between two different date objects in java and if that time exceeds 5 sec i have to invalidate the session.

Here\'s the scenari

Answer 1

   long difference = date2.getTime() - date1.getTime();

    // now you have your answer in milliseconds - 
//so divide by 1000 to get the time in seconds