To convert a java.util.Date object to a String, you can use the format method of the SimpleDateFormat class from the java.text package. The SimpleDateFormat class provides a convenient way to convert a Date object to a String based on a specified format.
To set the time zone of a java.util.Date object in Java, you can use the Calendar class.
To subtract a certain number of days from a Date object in Java, you can use the Calendar class.