android - String from\to GregorianCalendar cause java.text.ParseException: Unparseable date -

i need convert gregoriancalendar string , reconvert string gregoriancalendar again

i use convert string in gregoriancalendar

        dateformat format = new simpledateformat();         date date = null;         try {             date = format.parse(dates);         } catch (parseexception e) {             e.printstacktrace();         }         gregoriancalendar cal = new gregoriancalendar();         cal.settime(date); 

unfortunately when invoke second method error

java.text.parseexception: unparseable date: "11 apr 2014 21:48:02" (at offset 2) 

at line

date = format.parse(dates); 

you need instantiate simpledateformat object pattern use parse date string. in case:

dateformat format = new simpledateformat("d mmm yyyy hh:mm:ss"); 

a table of acceptable pattern symbols can found in docs simpledateformat