DateTime currentDate = new DateTime(); DateTime twoWeeksLater = currentDate.plusWeeks(2);
DateTime startDate = new DateTime(2021, 1, 1, 0, 0, 0); DateTime endDate = startDate.plusWeeks(4);In this example, we create a new `DateTime` object representing January 1st, 2021 at midnight. We then call `plusWeeks`, passing in a value of 4, to add four weeks to the starting date. The resulting `DateTime` object (stored in the `endDate` variable) will represent the date and time four weeks after the starting date, which in this case is January 29th, 2021 at midnight. Overall, `plusWeeks` is a simple but useful method for working with dates and times in Java. It is part of the `org.joda.time` package library.