I have this project for my CIS class that simulates a car lot. It has multiple screens that display certain JTables depending on which screen is selected. I have most of it done except for the overDue screen. I need help with one method in it. This method that I am stumped on will return a boolean if the current date is 30 or more days than the date in which the car or truck was bought. The problem is that the date for the car or truck is in a Gregorian Calendar Date and I thought maybe if I could convert that to a SimpleTimeFormat then I could use a Substring to pull the dates and convert those into ints. After I would do that I would set that to a Calendar date and compare that with the Current date. However this did not work. Here is the method, any suggestions are welcome.