APPLIANCE.JAVA

//Abstract class capturing shared state between Fridge and ToasterOven

public abstract class Appliance extends Product{

private int wattage;

private String color;

private String brand;

public Appliance(double initPrice, int initQuantity, int initWattage, String initColor, String initBrand){

super(initPrice, initQuantity);

wattage = initWattage;

color = initColor;

brand = initBrand;

}

public String getColor(){

return color;

}

public String getBrand(){

return brand;

}

public int getWattage(){

return wattage;

}

}

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COMPUTER.JAVA

//Abstract class capturing shared state between Desktop and Laptop

public abstract class Computer extends Product{

private double cpuSpeed;

private int ram;

private boolean ssd;

private int storage;

public Computer(double initPrice, int initQuantity, double initCPUSpeed, int initRAM, boolean initSSD, int initStorage){

super(initPrice, initQuantity);

cpuSpeed = initCPUSpeed;

ram = initRAM;

ssd = initSSD;

storage = initStorage;

}

public double getCPUSpeed(){

return cpuSpeed;

}

public int getRAM(){

return ram;

}

public boolean getSSD(){

return ssd;

}

public int getStorage(){

return storage;

}

}

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ElectronicStore.JAVA

//Class representing an electronic store

//Has an array of products that represent the items the store can sell

import java.util.ArrayList;

import java.util.Scanner;

public class ElectronicStore{

public final int MAX_PRODUCTS = 10; //Maximum number of products the store can have

private int curProducts;

String name;

Product[] stock; //Array to hold all products

double revenue;

public ElectronicStore(String initName){

revenue = 0.0;

name = initName;

stock = new Product[MAX_PRODUCTS];

curProducts = 0;

}

public String getName(){

return name;

}

//Adds a product and returns true if there is space in the array

//Returns false otherwise

public boolean addProduct(Product newProduct){

if(curProducts < MAX_PRODUCTS){

stock[curProducts] = newProduct;

curProducts++;

return true;

}

return false;

}

//Sells 'amount' of the product at 'index' in the stock array

//Updates the revenue of the store

//If no sale occurs, the revenue is not modified

//If the index is invalid, the revenue is not modified

public void sellProducts(int index, int amount){

if(index >= 0 && index < curProducts){

revenue += stock[index].sellUnits(amount);

}

}

public double getRevenue(){

return revenue;

}

//Prints the stock of the store

public void printStock(){

for(int i = 0; i < curProducts; i++){

System.out.println(i + ". " + stock[i] + " (" + stock[i].getQuantity() + " in stock, " + stock[i].getPrice() + " dollars each)");

}

}

public static ElectronicStore createStore(){

ElectronicStore store1 = new ElectronicStore("Watts Up Electronics");

Desktop d1 = new Desktop(100, 10, 3.0, 16, false, 250, "Compact");

Desktop d2 = new Desktop(200, 10, 4.0, 32, true, 500, "Server");

Laptop l1 = new Laptop(150, 10, 2.5, 16, true, 250, 15);

Laptop l2 = new Laptop(250, 10, 3.5, 24, true, 500, 16);

Fridge f1 = new Fridge(500, 10, 250, "White", "Sub Zero", 15.5, false);

Fridge f2 = new Fridge(750, 10, 125, "Stainless Steel", "Sub Zero", 23, true);

ToasterOven t1 = new ToasterOven(25, 10, 50, "Black", "Danby", 8, false);

ToasterOven t2 = new ToasterOven(75, 10, 50, "Silver", "Toasty", 12, true);

store1.addProduct(d1);

store1.addProduct(d2);

store1.addProduct(l1);

store1.addProduct(l2);

store1.addProduct(f1);

store1.addProduct(f2);

store1.addProduct(t1);

store1.addProduct(t2);

return store1;

}

}

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DESKTOP.JAVA

//Class representing a single desktop computer

public class Desktop extends Computer{

String towerProfile;

public Desktop(double initPrice, int initQuantity, double initCPUSpeed, int initRAM, boolean initSSD, int initStorage, String initProfile){

super(initPrice, initQuantity, initCPUSpeed, initRAM, initSSD, initStorage);

towerProfile = initProfile;

}

public String toString(){

String result = towerProfile + " Desktop PC with " + getCPUSpeed() + "ghz CPU, " + getRAM() + "GB RAM, " + getStorage() + "GB ";

if(getSSD()){

result += "SSD drive.";

}else{

result += "HDD drive.";

}

return result;

}

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Fridge.java

//Class representing a single type of Fridge

public class Fridge extends Appliance{

double cubicFeet;

boolean hasFreezer;

public Fridge(double initPrice, int initQuantity, int initWattage, String initColor, String initBrand, double initFeet, boolean initFreezer){

super(initPrice, initQuantity, initWattage, initColor, initBrand);

cubicFeet = initFeet;

hasFreezer = initFreezer;

}

public String toString(){

String result = cubicFeet + " cu. ft. " + getBrand() + " Fridge ";

if(hasFreezer){

result += "with Freezer ";

}

result += "(" + getColor() + ", " + getWattage() +" watts)";

return result;

}

}

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Laptop.java

//Class representing a single laptop product

public class Laptop extends Computer{

private double screenSize;

public Laptop(double initPrice, int initQuantity, double initCPUSpeed, int initRAM, boolean initSSD, int initStorage, double initScreen){

super(initPrice, initQuantity, initCPUSpeed, initRAM, initSSD, initStorage);

screenSize = initScreen;

}

public String toString(){

String result = screenSize + " inch Laptop PC with " + getCPUSpeed() + "ghz CPU, " + getRAM() + "GB RAM, " + getStorage() + "GB ";

if(getSSD()){

result += "SSD drive.";

}else{

result += "HDD drive.";

}

return result;

}

}

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Product.JAVA

//Base class for all products the store will sell

public class Product{

private double price;

private int quantity;

public Product(double initPrice, int initQuantity){

price = initPrice;

quantity = initQuantity;

}

public int getQuantity(){

return quantity;

}

public double getPrice(){

return price;

}

//Returns the total revenue (price * amount) if there are at least amount items in stock

//Return 0 otherwise (i.e., there is no sale completed)

public double sellUnits(int amount){

if(amount > 0 && quantity >= amount){

quantity -= amount;

return price * amount;

}

return 0.0;

}

}

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Toasteroven.java

//Class representing a single toaster oven product

public class ToasterOven extends Appliance{

private int width;

private boolean convection;

public ToasterOven(double initPrice, int initQuantity, int initWattage, String initColor, String initBrand, int initWidth, boolean initConvection){

super(initPrice, initQuantity, initWattage, initColor, initBrand);

width = initWidth;

convection = initConvection;

}

public String toString(){

String result = width + " inch " + getBrand() + " Toaster ";

if(convection){

result += "with convection ";

}

result += "(" + getColor() + ", " + getWattage() +" watts)";

return result;

}

}