Date object to Calendar [Java]

Question

I have a class Movie in it i have a start Date, a duration and a stop Date. Start and stop Date are Date Objects (private Date startDate ...) (It\'s an assignment so i cant

Answer 1

You don't need to convert to Calendar for this, you can just use getTime()/setTime() instead.

getTime(): Returns the number of milliseconds since January 1, 1970, 00:00:00 GMT represented by this Date object.

setTime(long time) : Sets this Date object to represent a point in time that is time milliseconds after January 1, 1970 00:00:00 GMT. )

There are 1000 milliseconds in a second, and 60 seconds in a minute. Just do the math.

    Date now = new Date();
    Date oneMinuteInFuture = new Date(now.getTime() + 1000L * 60);
    System.out.println(now);
    System.out.println(oneMinuteInFuture);

The L suffix in 1000 signifies that it's a long literal; these calculations usually overflows int easily.