I am trying to get the program to call up the current date, add 30 days to it, and then out put that date as a string.

```
        // Set calendar for due date on invoice gui
    Calendar cal = Calendar.getInstance();

    // Add 30 days to the calendar for the due date
    cal.add(Calendar.DATE, 30);
    Date dueDate = cal.getTime();
    dueDatestr = Calendar.toString(dueDate);

```