required to develop a Menu Driven

Task Details For this assignment, you are required to develop a Menu Driven Console Java Program to demonstrate you can use Java constructs including input/output…

Task

Details

For this assignment, you are required to develop a Menu Driven
Console Java Program to demonstrate you can use Java constructs
including input/output via GUI dialogs, Java primitive and built-in
types, Java defined objects, arrays, selection and looping statements
and various other Java commands. Your program must produce the correct
results. The code for the menu and option selection is supplied:
RockyCateringMenu.java and is available on the unit website, you must
write the underlying code to implement the program. The menu selections
are linked to appropriate methods in the given code. Please spend a bit
of time looking at the given code to familiarise yourself with it and
where you have to complete the code. You will need to write comments in
the supplied code as well as your own additions.

What to submit for this assignment

The Java source code: o Booking.java o RockyCateringMenu.java If you
submit the source code with an incorrect name you will lose marks.
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A report including an UML class diagram of your Booking class, how
long it took to create the whole program, any problems encountered, and
screenshots of the output produced including annotations. (Use
Alt-PrtScrn to capture just the application window and you can paste it
into your Word document) You should test every possibility in the
program.

Assignment Specification

You have completed the console program for processing bookings for
Rocky Catering Service. We are going to extend this application so the
booking names and number of guests per booking can be stored in an array
of objects, do not use ArrayList.

The program will run via a menu of options, the file
RockyCateringMenu.java has been supplied (via the Moodle web site) which
supplies the basic functionality of the menu system.

Look at the code supplied and trace the execution and you will see
the menu is linked to blank methods (stubs) which you will implement the
various choices in the menu.

Booking class First step is to create a class called Booking (Booking.java).

The Booking class will be very simple it will contain two private instance variables:

bookingName as a Stringguests as an integer

You should also have constants for the charge and discount values.

The following public methods will have to be implemented:

A default constructorA parameterised constructorTwo set methods (mutators)Two get methods (accessors)A method to calculate and return the charge for the booking.

This calculation will be the same as in assignment one. Use constants for all numeric literals.

Ten to twenty guests will be $29.50 per head.

Twenty-one to forty guests will be the cost of twenty guests (at $29.50 per head) $590.00 plus $24.50 per head after that.

Over forty guests will be the cost of forty guests $1,080.00 plus $19.50 per head after that.

Note: Following basic database principles, calculated values
are not usually stored, so in this case we will not store the charge as a
instance variable, but use the calculateCharge() method when we want to
determine the charge.

RockyCaterMenu class Once the Booking class is implemented and fully tested we can now start to implement the functionality of the menu system.

Data structures For this assignment we are going to store the
booking names and number of guests in an array of Booking objects.
Declare an array of Booking objects as an instance variable of
RockyCateringMenu class the array should hold ten bookings. You will
need another instance variable (integer) to keep track of the number of
the bookings being entered and use this for the index into the array of
Booking objects.

Menu options

Enter booking name and number of guests:

enterBooking() For assignment two we are going to use the GUI dialog
showInputDialog() for our input. You will need to create the following
two dialogs to receive the input from the user. You will not implement
the functionality of the cancel key (need to use exceptions for this).
Use Integer.parseInt() to convert the number as a string into an
integer.

Data validation (you can implement this after you have got the basic
functionality implemented) You will need to validate the user input
using a validation loop. The booking name cannot be blank i.e. not null
and the number of guests cannot be blank and the number of guests needs
to be greater than or equal to ten, the same as assignment one.

Output the following error dialogs:

When the booking name and number of guests have been entered
successfully into two local variables you will need to add these values
into the bookings object array, you will also need to increment a
counter to keep track of the number of bookings you have entered and the
position in the array of the next booking to be entered.

When the maximum number of bookings is reached do not attempt to add any more bookings and give the following error message:

When the booking details have been successfully entered, display the
details of the booking and the charge on the console screen.

Note: For the next three options, display all, statistics and
search you should ensure at least one booking has been entered and give
an appropriate error message if it there are no bookings entered and for
the sorting option you must ensure at least two bookings have been
entered, for example:

Display all booking names, number of guests and charges

displayAllBookings() When this option is selected display all of the bookings which have been entered so far.

Display statistics:

displayStatistics() When this option is selected you will
display the statistics as per assignment one. You can loop through your
array of objects to calculate this information.

Search for a booking:

searchBookings() You can just use a simple linear search which
will be case insensitive. Use the showInputDialog() method to input the
booking name (you can share this functionality from enter booking).

If the search is successful display the details about the booking.

If the search is unsuccessful display an appropriate message.

Sort the bookings

sortBookings()

This option you will sort the bookings alphabetically (ignore case)
by the booking names, you can use any sorting algorithm which you like,
do not use any in-built sort methods. Display the sorted list after the
sort is complete.

Remember the welcome and exit messages as per assignment one.

Extra Hints Your program should be well laid out, commented
and uses appropriate and consistent names (camel notation) for all
variables, methods and objects. Make sure you have no repeated code
(even writing headings in the output) Constants must be used for all
numbers (numeric literals) in your code. Look at the marking criteria to
ensure you have completed all of the necessary items Refer to a Java
reference textbook and the unit and lecture material (available on the
course web site) for further information about the Java programming
topics required to complete this assignment. Check output, check code
and add all of your comments, complete report and the UML class diagram.

Supplied Code Download, compile and run the supplied code
available from the course web site. You will see the menu interface has
been implemented and you have to implement the underlying code, use the
supplied method stubs and add your own methods. Follow the // TODO
comments in the supplied code. Again no code should be repeated in your
program.

If you just submit the supplied code you will receive zero marks.

Variables, constants and types Variables have meaningful names and
use camel notation 0.5 Variables are the correct type and constants are
used 0.5 Array of objects is used 1

Code in general Code is indented and aligned correctly 1 Code is easy
to read (use of vertical whitespace) 0.5 Code has header comment which
includes name, student ID, date, file name and purpose of the class 0.5
Code is fully commented including all variables and methods 0.5 No
repeated code 1

Booking class Instance variables are correct and private 0.5
Default and parameterised constructors are correct 0.5 Method for
calculating charges is correct 1 Get and set methods are correct 1

RockyCateringMenu class — Enter Booking Booking name is read
correctly 0.5 Number of guests is read correctly 0.5 Data is added to
the object array correctly 2 Output resembles the specification (two
decimal points) 1 Charges calculated correctly 0.5 Error dialog when
maximum bookings is reached 0.5 Error dialog when booking name not
entered 0.5 Error dialog when number of guests is blank or is out of
range 0.75 Data validation loops are correct 0.25

Display all bookings All records displayed 2 Output resembles the specification 1

Display statistics Maximum and minimum are correct 0.5 Average
is correct 0.5 Total charges is correct 0.5 Output resembles the
specification (two decimal points) 1

Search Search is correct and correct details returned 2 Search is case insensitive 0.5 “ not found” is correct 0.5

Sort Sort is correct and inbuilt sorting methods are not used 2 Sort is case insensitive 0.5 Sorted list is displayed after sort 0.5

General Welcome and exit message (as per assignment one) 0.5
No bookings entered is handled correctly 0.5 Correct files submitted
including types and names 0.5

Report UML class diagram of Booking class is correct 1 Screen
shot(s) of testing and annotations 0.5 Report presentation and comments
including how long it took and any problems encountered 0.5
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