I desperately need help with this problem. Can someone show how it is done. I would highly appreciate. Thank you. I have a site added to this below so you can see the picture of the window and dialog box of what it is suppose to look like. see below

RapidLube is a fast growing franchise that offers tremendous value for customers
needing automotive maintenance services. Their current price list inclusive of all taxes
(in USD) is as follows:
Oil Change:
· Natural : 19.95
· Blend: 39.95
· Synthetic: 49.95
Tire Rotation: 60.00
Muffler Replacement: 225.00
Transmission Flush: 65.00
Radiator Flush: 35.00
In order to reward regular customers, the chain also offers a 10% discount off the total
price.
You are tasked with creating a GUI application (RapidLubeUI) to be used at their
Point of Sale (POS) terminals with the following suggested specifications.
The main application will open with a window as shown below with minimum size of
600×200 pixels. Note the use of banner at the top and the buttons at the bottom. The main
work area consists of sections: one for customer info, another for oil change and the third
for maintenance services offered by Rapid Lube.
http://www.flickr.com/photos/65696160@N03/5983007558/in/photostream ( see here for window)
The customer may optionally pick at most one type of oil change. However, a particular
job may contain of any combination of maintenance items like Tire Rotation,
Transmission Flush etc.
The user interface will provide a quick way to estimate the total for a job. Clicking on the
estimate button should bring up a dialog as follows detailing the estimated costs.
http://www.flickr.com/photos/65696160@N03/5983007582/in/photostream (see here for dialog box)
A regular customer discount of 10% must be offered if the Regular Customer item is
checked.
The customer name cannot be empty for checkout. When the customer checks out,
clicking on the checkout button will log the job (append data line) to a file named
SalesLog.txt with following information: Timestamp, customer name and total
amount as shown below.
2010-Nov-29 08:45:31 AM, John Doe, 244.95
Clicking on the exit button exits the application.
NOTES:
1. All dollar amounts presented should be restricted to two decimal places.
2. Use of automated UI generating wizards is prohibited for this assignment
3. You can use multiple classes as a project. In this case make sure you submit all
project files in a single jar file.