I need the following by tomorrow 5/7/2012. Assignment instructions are as follows below

A retailer would like a calculator to indicate sale prices when he marks items down at various percentages.

Design, implement, test, and debug a GUI application that allows the retailer to enter the item’s name, the item’s original price, and the percentage discounted.

• The application should include a Calculate button that, when pressed, computes and displays the sale price in a label or text field.
• The program should allow the retailer to enter any number of items in this manner.
• Include an Exit button to end the execution of the application.
• The program should allow the user to select a department from a menu. You may create the menu as a true menu, a JComboBox, or radio buttons.
• Create your own list to populate the menu: men’s clothing, women’s clothing, house wares, and so forth.
• Include at least five departments.
• Create a JTextArea or a JTable to display each of the following for each item entered:
• Item name
• Department
• Original price
• Sale price