How to sanity check a date in Java [closed]

Answer 1

Above methods of date parsing are nice , i just added new check in existing methods that double check the converted date with original date using formater, so it works for almost each case as i verified. e.g. 02/29/2013 is invalid date. Given function parse the date according to current acceptable date formats. It returns true if date is not parsed successfully.

 public final boolean validateDateFormat(final String date) {
        String[] formatStrings = {"MM/dd/yyyy"};
        boolean isInvalidFormat = false;
        Date dateObj;
        for (String formatString : formatStrings) {
            try {
                SimpleDateFormat sdf = (SimpleDateFormat) DateFormat.getDateInstance();
                sdf.applyPattern(formatString);
                sdf.setLenient(false);
                dateObj = sdf.parse(date);
                System.out.println(dateObj);
                if (date.equals(sdf.format(dateObj))) {
                    isInvalidFormat = false;
                    break;
                }
            } catch (ParseException e) {
                isInvalidFormat = true;
            }
        }
        return isInvalidFormat;
    }