In Java, implement an airplane seat reservation system. An airplane has two clas

Question

In Java, implement an airplane seat reservation system. An airplane has two classes of service (first and economy). Each class has a sequence of seat rows. The following figure shows the seat chart of the airplane.

In the above seat chart, the seat rows are numbered as 1,2, etc.

A reservation request has one of two forms. One form is that an individual passenger request consists of the passenger name, a class of service, and a seat preference such as W(indow), C(enter), or A(aisle) seats. The reservation program either finds a matching seat (the search may start from the first row of the class.) and reserves it for the passenger, or it fails if no matching seat is available. (For example, if the user's preference is a W(indow) seat and none is available, tell the user no Window seat is available and ask for another seat preference.) The other form is that a group request consists of a list of passenger names and a class of service. (Groups cannot specify a seat preference). The reservation program finds the first row of adjacent seats in a seat row that is sufficient to accommodate the group, or if no such seat row exists, finds the row with the largest number of adjacent seats in any seat row, fills it up with members of the group, and repeats that process (finding the row with the largest number of adjacent seats) until all members of the group have been seated. If there is insufficient space to seat all members of the group, none should be seated.

A cancellation request consists of the name of one or more passengers. The seats that are occupied by passengers in the request are emptied; passengers in the request that are not seated are ignored.

There are two kinds of report: seat availability chart and manifest list. A seat availability chart shows the available seats of each row of each class as shown below. You can guess the rest of the seat availability chart based on the example for the First Class.

Availability List:

First

1: B,D

2: C,D

Economy

A manifest lists the occupied seats and the passengers seated in them:

First

1A: James Brown

1C: Anna Black

2A: Mike Bask

2B: Kim Pham

Economy

Your program must be called ReservationSystem. Use a command line argument to read the name of a file that holds information from a prior program run. If the file does not exist, the program creates one. You may use the exists() method of the File class to check.

The following shows how you would run the program on command prompt.

java ReservationSystem flightname

where flightname is the name of a file that holds information from a prior program run.

In Eclipse, follow Run-> Run Configurations -> Arguments, enter the command line argument, in our case flightname, in the box named Program Arguments, and run the program.

The user interacts with the program to make a reservation, and the user input is read from standard input (System.in). The user interface for this program is as follows. Prompt the user:

Add [P]assenger, Add [G]roup, [C]ancel Reservations, Print Seating [A]vailability Chart, Print [M]anifest, [Q]uit

The following describes the function(s) of each option.

Add [P]assenger
When the user wants to add a passenger, prompt the user:

Name: Jonas Cally

Service Class: First

Seat Preference: W

Print the seat number such as 1A on which the passenger has been seated, or Request failed.

Add [G]roup
When the user wants to add a group, prompt as follows: (bold are user inputs; the group member names should be separated by a comma)

Group Name: Robots

Names: Sara Tyler, Tim Brown

Service Class: Economy

Print the seat numbers on which the passengers have been seated, or Request failed.

[C]ancel Reservations
First prompt the user asking if the cancellation is for an [I]ndividual or a [G]roup. When the user wants to cancel an [I]ndividual reservation (as opposed to a [G]roup reservation), prompt as follows:

Cancel [I]ndividual or [G]roup? I

Names: John Smith

When the user wants to cancel a group reservation, prompt as follows: (bold are user inputs)

Group Name: Baseball

A cancellation of a group reservation will cancel the reservations of all group members. For simplicity, let's assume an individual group member cannot cancel his/her reservation only.

Print Seating [A]vailability Chart.
Prompt the user asking the desired service class. For example:

Service Class: First

or

service Class: Economy

The program displays the seat availability chart of the service class only.

Print [M]anifest
Prompt the user asking the desired service class. For example:

Service Class: First

or

service Class: Economy

The program displays the manifest of the requested service class only.

[Q]uit
When the user quits, save the reservations in the text file whose name was given on the command line when the program starts. As a designer, you should determine what to save in which order to store the reservations already made. This file contains the final reservations only.

10 11 12 13 14 15 16 17 18 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 first class economy class economy class 10 11 12 13 14 15 16 17 18 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 s front legend first class seat economy class seat lavatoryigalley exit row exit

Explanation / Answer

Hi i have written a Sample JAVA program that  implement an airplane seat reservation system for your reference,

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