Calendar class, getting date

Import java.util.*;
Import java.text.*;
public class text9{
public static void Main (String args[]) {
//Create calendar Object
Calendar c=calendar.getinstance ();

//Get Time
Date D=c.gettime ();
System.out.println (d);

//Create a format template
SimpleDateFormat sdf=new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss");

//Formatted date
String S=sdf.format (d);
System.out.println (s);

//Set Date
C.set (2014,11,01,10,48,10);

//Get date
D=c.gettime ();
System.out.println (Sdf.format (d));

//Back up the date for 3 days
C.add (calendar.day_of_month,-3);
D=c.gettime ();
System.out.println (Sdf.format (d));
}
}

Calendar class, getting date