Java tutorial
import java.util.Date; /** * DateAdd -- compute the difference between two dates. */ public class DateAdd { public static void main(String[] av) { //+ /** Today's date */ Date now = new Date(); long t = now.getTime(); t -= 700 * 24 * 60 * 60 * 1000; Date then = new Date(t); System.out.println("Seven hundred days ago was " + then); //- } }