BookStore-App

Summary

A simple client-side book store application compiled in NetBeans for recording and retrieving customer and book information through a GUI.

Core Classes & Purposes

BookStoreApp

• Acts as the main application controller.

• Maintains references to:

  • currentState: The active state of the application.

  • currentBooks: The book inventory.

  • currentCustomers: The list of users.

• Key Methods:

  • setState(AppState): Switches the app's state.

  • setScreen(): Likely updates the UI or view according to the state.

AppState (Interface)

• Interface for all possible application states.

• Declares:

  • pressButton()

  • Exit()

State Implementations

Each state represents a different screen or mode of the app, implementing the AppState interface.

• LoginState

• OwnerStartState

• CustomersState

• BooksState

• CustomerStartState

• PurchaseState

  Most of these also implement:

  • Logout() (not in LoginState)

  • Exit()

  • pressButton() (main interaction handler)

Books

• Attributes: name, price

• Methods:

  • addBook(name, price)

  • deleteBook()

Customers

• Attributes: name, password, points, status

• Methods:

  • addCustomer(name, password)

  • deleteCustomer()

Class Diagram

Use-Case Diagram