To place an item for bidding, the user has to enter the following data.
The user will be provided with screens where in he can “Place an Item for bid”, “Bid on an Item” and “View the Items already placed for bid”. The User Interface for this project is designed using the Builder Pattern to allow for custom User Interface implementations.
If User2 would like to change the length of the labels and text fields, or change the background color. Instead of changing the code which is scattered everywhere, he can just make use of builder pattern to change User Interface.