/java-simple-booking-application

Primary LanguageJava

Simple Booking Application

Use Case

Build a simple Java application for the use case to book a show. The program must take input from the command line. The program would set up available seats per show, allow buyers to select 1 or more available seats, and buy/cancel tickets. The application shall cater to the below 2 types of users & their requirements – (1) Admin and (2) Buyer

Admin

The users should be able to set up and view the list of shows and seat allocations.

Commands to be implemented for Admin :

  1. Setup <Show Number> <Number of Rows> <Number of seats per row> <Cancellation window in minutes>
    To set the number of seats per show

  2. View <Show Number>
    To display Show Number, Ticket#, Buyer Phone#, Seat Numbers allocated to the buyer

Buyer

The users should be able to retrieve the list of available seats for a show, select 1 or more seats, buy and cancel tickets.

Commands to be implemented for Buyer :

  1. Availability <Show Number>
    To list all available seat numbers for a show. E,g A1, F4 etc

  2. Book <Show Number> <Phone#> <Comma separated list of seats>
    To book a ticket. This must generate a unique ticket # and display

  3. Cancel <Ticket#> <Phone#>
    To cancel a ticket. See constraints in the section below

Constraints:

  • Assume the max seats per row are 10 and the max rows are 26.
  • Example seat number A1,H5 etc.
  • The “Add” command for admin must ensure rows cannot be added beyond the upper limit of 26.
  • After booking, the User can cancel the seats within a time window of 2 minutes (configurable). Cancellation after that is not allowed.
  • Only one booking per phone# is allowed per show.

Additional Assumptions

  1. All number inputs are positive whole numbers.
  2. Admin users cannot book a show as well as cancel an existing booking.
  3. Since the data is saved in the memory, running a new instance of the application will have a different set of data.
  4. Admin username and password are fixed (admin/123) and cannot be changed by a user.
  5. There is no limit on how many seats a Buyer can book, however, if one of the seats is not available, it will not book all the provided seats.
  6. Seat input is comma-separated, with no spaces in the format of row[A-Z]col[1-10], (e.g. A1,C3,Z10).
  7. Admin cannot update an existing show however can remove it without constraints.
  8. Maximum cancellation window value is 2880 mins (2 days).
  9. Buyer username is a 5-digit input (serves as phone#).
  10. This application is not a multi-threaded application.