Java was time to get a specified time after half an hour plus

C = Calendar.getInstance Calendar ();
c.setTime (CUR); // Set the time
c.add (Calendar.MINUTE, 1); // Date minutes plus 1, Calendar.DATE (days), Calendar.HOUR (h )
a Date c.getTime = DATE (); // results

 

Calendar cal = Calendar.getInstance();
cal.setTime(d1);
cal.add(Calendar.MINUTE, 30);
Date d2 = cal.getTime();