Change Calendar date in android?

Question

Java

Good!
Is it possible to add or subtract N days in Calendar and have it give out what the number will be, of course, taking into account the month and high year? Or do you need to write everything in the old fashioned way with pens?
Now I get the date for today

TextView forDate = new TextView();
        Calendar calendar = Calendar.getInstance();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        String strDate = sdf.format(calendar.getTime());
        forDate.setText(forDate.getText() + " " + strDate);

Answer 1

calendar.add(Calendar.DAY_OF_YEAR, 10);
forDate.setText(calendar.getTime());