java - How to add 7 days to current date while not going over available days of a month?

Question

I am trying to get todays day of the month.

And what i want to do is add seven days to the number and the get that current day of the month.

Also i want it to be able to go to the next month..Lets say today is the 29th. When it adds 7 days how can i get it to go the the next month such as 29 + 7 would equal the 5th of the next month.

How would i go about doing this?

Ive already managed to get the current date.

Calendar cal = Calendar.getInstance();
    int day = cal.get(Calendar.DAY_OF_MONTH);
    int dayOfMonth = day;
    String today = getToday();

I am using this because i would like to launch an asynctask in my main activity every 7 days.

Answer 1

add(Calendar.DAY_OF_MONTH, 7);

From Calendar JavaDoc