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Thread: GregorianCalendar

  1. #1
    Java kindergarten chronoz13's Avatar
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    Default GregorianCalendar

    converting GregorianCaledanr value to String is easy by
    using SimpleDateFormat class

    but how to convert it into int



    ------------------------------------
    String representation
        public static void main(String[] args)throws IOException
     
        {
            int year,
                month,
                day;
     
            GregorianCalendar cal;
            SimpleDateFormat sdf;
     
            System.out.print("Enter Year: ");
            year = Integer.parseInt(br.readLine( ));
     
            System.out.print("Enter Month:");
            month = Integer.parseInt(br.readLine( ));
     
            System.out.print("Enter Day: ");
            day = Integer.parseInt(br.readLine( ));
     
            cal = new GregorianCalendar(year, month-1, day);
            sdf = new SimpleDateFormat("EEEE");
     
            System.out.println("Day Of Week: " + sdf.format(cal.getTime( )));
        }
     
    }
    --------------------------------------------------------------------
    the problem is asking to display it as int

    heres the code i hope you understand this

    //sets the expiration date
    public void setExpDate(GregorianCalendar date)
    {
       ........<statement> here
    }
     
    //returns the epiration year
    public int getExpYear(  )
    {
      ......<statement> here
    }
     
    //returns the expriration month
    public int getExpMonth( )
    {
    .....<statement>Here
    }
     
    //returns the expiration day
    public int getExpDay( )
    {
     .....<statement> here
    }

    setting the date is easy , displaying the date by String representaion is easy
    but how to display it into an INteger value?


    the program is asking me to extend a predefined class (LibraryCard class) by adding such methods
    for an expiring date of a card

    but to display it as int ...

    Oh my....


  2. #2
    Super Moderator Json's Avatar
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    Default Re: GregorianCalendar

    Time is represented as a long usually and here we go.

    calendar.getTimeInMillis();

    // Json

  3. The Following User Says Thank You to Json For This Useful Post:

    chronoz13 (August 29th, 2009)

  4. #3
    Java kindergarten chronoz13's Avatar
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    Default Re: GregorianCalendar

    ahh so i have to use the method of GregorianCalendar class that can return a value of int

    oh my.. the book doesnt give a full detail...... hayzz...

  5. #4
    Super Moderator Json's Avatar
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    Default Re: GregorianCalendar

    Oh, no you can get the time in milliseconds without the GregorianCalendar, but I thought you wanted to know how to get it from the Calendar.

    System.currentTimeMillis();

    That will get you the time as a long.

    // Json