String str=new String("2003-6-17");
Date tt1=Date.valueOf(str);//java.sql.Date
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date tt2= sdf.parse(str);//java.util.Date
Date tt1=Date.valueOf(str);//java.sql.Date
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date tt2= sdf.parse(str);//java.util.Date
int j = (new Integer(str.substring(0, 4))).intValue();
int k = (new Integer(str.substring(5, 7))).intValue();
int l = (new Integer(str.substring(8, 10))).intValue();
GregorianCalendar gregoriancalendar = new GregorianCalendar(j, k, l);
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
Date date = formatter.parse(str);