Question

I cannot get the add function in Blackberry Java.

// Date
private static DateFormat dateFormat = new SimpleDateFormat(
        "yyyy-MM-dd hh:mm:ss");
private static Calendar cal = Calendar.getInstance();
public static final String date = dateFormat.format(cal.getTime())
        .toString();

The cal variable don’t have add function because I want to reduce 1 day from current date.

The source stated that used cal.add(Calendar.DATE, -1);.

Answer 1

Try this:

Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(cal.getTime() - DateTimeUtilities.ONEDAY);

Updated, based on ecb0628‘s answer and paulkayuk‘s comment.

Check Calendar, getTimeInMilis(), setTimeInMillis(long millis), and DateTimeUtilities.ONEDAY.