import java.util.Date; public class Test { public static void main(String[] args) { Date a=new Date("2012/03/24"); Date b=new Date("2012/03/04"); long s=a.getTime()-b.getTime(); System.out.println(s/86400000); } }
-import java.util.Calendar; public class Test { public static void main(String[] args) { Calendar calendar = Calendar.getInstance(); calendar.set(2012,2- 1, 24); int i = calendar.get(Calendar.DAY_OF_YEAR); calendar.set(2012,3- 1, 24); i=calendar.get(Calendar.DAY_OF_YEAR)-i; System.out.println(i); } }