Assignment: Classes and Inheritance Scenario A local company, Modern Appliances, has hired you to implement a system to manage their appliance data more efficiently. They want a system that allows both employees and customers to find, list and purchase appliances. They company has provided you with a data file containing a sample list of appliances. The data file contains four types of appliances: refrigerators, vacuums, microwaves and dishwashers. Each appliance is uniquely identified using an item number, and information about each type of appliance is described in the formatting section. Equipment and Materials For this assignment, you will need: Visual Studio IDE Supplied data file: appliances.txt

Refrigerators The first digit of the Item Number for refrigerators is 1. Refrigerators have an Item Number, Brand, Quantity, Wattage, Color, Price, Number of Doors, Height and Width (in inches). The number of doors value can be either 2 (double doors), 3 (three doors) or 4 (four doors). Each refrigerator is represented in the appliances.txt file file as follows: ItemNumber;Brand;Quantity;Wattage;Color;Price;NumberOfDoors;Height;Width Example: 089360200;Bosch;176;60;black;2000;2;62;29; Vacuums The first digit of the Item Number for vacuums is 2. Vacuums have an Item Number, Brand, Quantity, Wattage, Color, Price, Grade and Battery Voltage. The Battery voltage value can be either 18 V (Low) or 24 V (High). Each vacuum is represented in the appliances.txt file as follows: ItemNumber;Brand;Quantity;Wattage;Color;Price;Grade;BatteryVoltage Example: 263788832;Hoover;59;600;black;750;Residential;18; Microwaves The first digit of the Item Number for Microwaves is 3. Microwaves have an Item Number, Brand, Quantity, Wattage, Color, Price, Capacity and Room Type. The room type is where the microwave will be installed, and is either K (kitchen) or W (work site) Each microwave is represented in the appliances.txt file as follows: ItemNumber;Brand;Quantity;Wattage;Color;Price;Capacity;RoomType Example: 383477937;Miele;201;2350;white;179.9;1.8;Kitchen; Dishwashers The first digit of the Item Number for microwaves is 4 or 5. Dishwashers have an Item Number, Brand, Quantity, Wattage, Color, Price, Sound Rating, Feature and Finish. The Sound Rating of the microwave can be Qt (Quietest), Qr (Quieter), Qu (Quiet) or M (Moderate). Each dishwasher is represented in the appliances.txt file as follows: ItemNumber;Brand;Quantity;Wattage;Color;Price;Feature;SoundRating Example: 587065284;Kenwood;74;1010;silver;390;Clean with Steam;Quiet; Program Guidelines The fact that the data formatting is different for each type of appliance adds a level of complexity to program development. Creating a class hierarchy is required: Determine the attributes that are shared between the appliance types and create an Appliance class containing them. Note: The Appliance class cannot be instantiated and must be a super-class. Create the following classes such that each one inherits the Appliance class and is located in the programs problemdomain folder: Refrigerator Vacuum Microwave Dishwasher Ensure that each of these classes has a user-defined constructor that assigns the appropriate attributes. Override the toString() method in each one of these classes, so that the data is in a human readable form. The attributes should be displayed using vertical headers. Along with the functionality mentioned above, include the following methods in your program: A method that parses the appliances.txt file into a single list. The list must be able to contain all appliance types (refrigerator, vacuum, microwave, and dishwasher). Use the first digit of the item number to determine what valid type of appliance needs to be created (see the Appliance Details section for more information). A method that allows a customer to purchase an appliance. The customer is prompted to enter the item number of an appliance. If the entered item number does not match, the program will inform the customer with an error message. If the item number matches, the program checks the appliances availability. If there is an appliance available, the available count will be decremented and the appliance information will be displayed. Otherwise, the customer will be informed the appliance is not available. A method that prompts the customer to enter a brand. The program performs a case-insensitive search of appliances that have the same brand, and displays them. A method that prompts a user to enter a number, and the program then displays that number of random appliances. The appliances can be of any type. When the program exits, implement and call a method that takes the appliances stored in the list and persists them back to the appliances.txt file in the proper format.

Expected Output Welcome to Modern Appliances! How may we assist you? 1 Check out appliance 2 Find appliances by brand 3 Display appliances by type 4 Produce random appliance list 5 Save & exit Enter option: 1 Enter the item number of an appliance: 255131796 Appliance "255131796" has been checked out.

Welcome to Modern Appliances! How May We Assist You? 1 Check out appliance 2 Find appliances by brand 3 Display appliances by type 4 Produce random appliance list 5 Save & exit Enter option: 1 Enter item number of an Appliance: 143826003 The appliance is not available to be checked out.

Welcome to Modern Appliances! How May We Assist You? 1 Check out appliance 2 Find appliances by brand 3 Display appliances by type 4 Produce random appliance list 5 Save & exit Enter option: 1 Enter item number of an Appliance: 1234567895 No appliances found with that item number.

Welcome to Modern Appliances! How May We Assist You? 1 Check out appliance 2 Find appliances by brand 3 Display appliances by type 4 Produce random appliance list 5 Save & exit Enter option: 2 Enter brand to search for: Tefal Matching Appliances: ItemNumber: 535981394 Brand: Tefal Quantity: 90 Wattage: 700 Color: bronze Price: 320 Feature: Third Rack SoundRating: Quietest ItemNumber: 243074424 Brand: Tefal Quantity: 61 Wattage: 4000 Color: black Price: 760 Grade: Residential BatteryVoltage: Low

Welcome to Modern Appliances! How May We Assist You? 1 Check out appliance 2 Find appliances by brand 3 Display appliances by type 4 Produce random appliance list 5 Save & exit Enter option: 3 Appliance Types 1 Refrigerators 2 Vacuums 3 Microwaves 4 Dishwashers Enter type of appliance: 1 Enter number of doors: 2 (double door), 3 (three doors) or 4 (four doors): 3 Matching refrigerators: Item Number: 146947171 Brand: Black & Decker Quantity: 112 Wattage: 1800 Color: grey Price: 1800 Number of Doors: Three Doors Height: 70 Width: 31 Item Number: 172911121 Brand: Philips Quantity: 144 Wattage: 700 Color: black Price: 3100 Number of Doors: Three Doors Height: 71 Width: 30

Welcome to Modern Appliances! How May We Assist You? 1 Check out appliance 2 Find appliances by brand 3 Display appliances by type 4 Produce random appliance list 5 Save & exit Enter option: 3 Appliance Types 1 Refrigerators 2 Vacuums 3 Microwaves 4 Dishwashers Enter type of appliance: 2 Enter battery voltage value. 18 V (low) or 24 V (high) 18 Matching vacuums: Item Number: 255131796 Brand: Black & Decker Quantity: 54 Wattage: 1500 Color: white Price: 500 Grade: Residential Battery voltage: Low Item Number: 263788832 Brand: Hoover Quantity: 59 Wattage: 600 Color: black Price: 750 Grade: Residential Battery voltage: Low Item Number: 231784690 Brand: Russell Hobbs Quantity: 155 Wattage: 175 Color: grey Price: 380 Grade: Residential Battery voltage: Low ItemNumber: 243074424 Brand: Tefal Quantity: 61 Wattage: 4000 Color: black Price: 760 Grade: Residential Battery voltage: Low Item Number: 240201796 Brand: Dyson Quantity: 81 Wattage: 1050 Color: white Price: 290 Grade: Residential Battery voltage: Low

Welcome to Modern Appliances! How May We Assist You? 1 Check out appliance 2 Find appliances by brand 3 Display appliances by type 4 Produce random appliance list 5 Save & exit Enter option: 3 Appliance Types 1 Refrigerators 2 Vacuums 3 Microwaves 4 Dishwashers Enter type of appliance: 3 RoomWhere the microwave will be installed: K (kitchen) or W (work site): W Matching microwaves: Item Number: 328237584 Brand: Miele Quantity: 90 Wattage: 1200 Color: bronze Price: 250.23 Capacity: 2.1 Room Type: Work Site Item Number: 333607621 Brand: Vax Quantity: 113 Wattage: 440 Color: silver Price: 123.99 Capacity: 1.6 Room Type: Work Site

Welcome to Modern Appliances! How May We Assist You? 1 Check out appliance 2 Find appliances by brand 3 Display appliances by type 4 Produce random appliance list 5 Save & exit Enter option: 3 Appliance Types 1 Refrigerators 2 Vacuums 3 Microwaves 4 Dishwashers Enter type of appliance: 4 Enter the sound rating of the dishwasher: Qt (Quietest), Qr (Quieter), Qu(Quiet) or M (Moderate): M Matching dishwashers: Item Number: 571522655 Brand: Philips Quantity: 228 Wattage: 440 Color: grey Price: 390 Feature: Finger Print Resistant SoundRating: Moderate ItemNumber: 493374445 Brand: Philips Quantity: 125 Wattage: 1650 Color: silver Price: 510 Feature: Clean with Steam SoundRating: Moderate

Welcome to Modern Appliances! How May We Assist You? 1 Check out appliance 2 Find appliances by brand 3 Display appliances by type 4 Produce random appliance list 5 Save & exit Enter option: 4 Enter number of appliances: 2 Random appliances: Item Number: 254565387 Brand: Miele Quantity: 86 Wattage: 1000 Color: grey Price: 800 Grade: Commercial Battery Voltage: High Item Number: 143826003 Brand: Kenwood Quantity: 0 Wattage: 4700 Color: silver Price: 1500 Number of Doors: Double Door Height: 62 Width: 32