1 Tasks: Peripatetic Software was very happy with your work on the user interface forDateAid . As a result, you have now been contracted to design and implement the "calculation logic" DateAid. You must:

1. Implement the "date logic". (Don't worry about the details. Just convert dates to milliseconds using the Date.getTime() method and add or subtract as appropriate.)
2. Combine the "date logic" with the UI logic using the threading architecture we developed in lecture.