String 2 Date

How to get right year, month and day?
I have the following code:
SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy");
myDate = sdf.parse(datum);
GregorianCalendar cal = new GregorianCalendar();
cal.setTime(myDate);
day= String.valueOf(cal.get(cal.DAY_OF_WEEK));
month = String.valueOf(cal.get(cal.MONTH));
year = String.valueOf(cal.get(cal.YEAR));if in JTextField there is a value 30.05.1976 I get wrong day and wrong month..
So in JTextField the user must enter a date in format dd.mm.yyyy then with SimpleDateFormat I convert it to Date..
With GregorianCalendar I would like to catch a day, month and year..
what I'am doing wrong?

2 Mistakes, try this:
     SimpleDateFormat  sdf    = new SimpleDateFormat("dd.MM.yyyy");
     Date              myDate = new Date();
     try
          myDate = sdf.parse("30.05.2002");
     catch(ParseException e)     {}
     GregorianCalendar cal = new GregorianCalendar();
     cal.setTime(myDate);
     String day   = String.valueOf(cal.get(cal.DAY_OF_MONTH));
     String month = String.valueOf(cal.get(cal.MONTH)+1);
     String year  = String.valueOf(cal.get(cal.YEAR));

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