java_ class calendar

calendar is a calendar class, which is an abstract class that can not be instantiated

. 1  public  class CalendarTest {
 2      / * 
. 3      creates objects and methods of use
 . 4       * / 
. 5      public  static  void main (String [] args) {
 . 6          // instantiate the object 
. 7          Calendar instance = Calendar.getInstance ();
 . 8          // Description a java.util.GregorianCalendar subclass that implements the class 
. 9          System.out.println (instance.getClass ());
 10          // gET method to obtain this month 
. 11          int day = instance.get (Calendar.DAY_OF_MONTH);
 12 is          the System. Out.println (day);
 13 is          // sET set day 10
14          instance.set (Calendar.DAY_OF_MONTH, 10 );
 15          int DAY1 = instance.get (Calendar.DAY_OF_MONTH);
 16          System.out.println (DAY1);
 . 17          // the Add Add three days 
18 is          instance.add (Calendar.DAY_OF_MONTH ,. 3 );
 . 19          int DAY2 = instance.get (Calendar.DAY_OF_MONTH);
 20 is          System.out.println (DAY2);
 21 is          // converts calendar class DATE 
22 is          a Date Time = instance.getTime ();
 23 is          the System.out .println (Time);
 24-          // the date into the calendar 
25          a Date date =new Date();
26         instance.setTime(date);
27         int i = instance.get(Calendar.DAY_OF_MONTH);
28         System.out.println(i);
29     }
30 }