Question

JAVA

Problem:  Coffee

do not use ArrayList or Case

Design and implement a program that manages coffees. First, implement an abstract class named Coffee. The Coffee class has three member variables: coffee type, price, and store name. The Coffee class has an abstract method name ingredient. Make sure to add all necessary setters and getters as well as other methods. The class Coffee implements an interface HowToMakeDrink. The interface has the following method:

public interface HowToMakeDrink {

public void prepare ();

}

The prepare method will simply print out the type of drink (CoffeeMocha) and all ingredients of the drink to the screen. Implement four derived classes named WhititeChocolateMocha, DarkChocolateMocha, CoffeeMocha, and PeppermintMocha.

Assign the appropriate value for chocolate Type for the first two classes. Add a peppermintSyrubAmount member variable to the PeppermintMocha class including a getter and setter function. Add a constructor to each class that sets the values of all properties. Override the prepare () method in each subclass by printing the coffee/class type and ingredients using the defined properties in that class.

Write a program that repeatedly shows the user a menu to create one of the three mocha drinks or to print all the drinks created so far. If the user selects to create a new mocha drink, the program prompts the user to enter the ingredients of the selected drink. If the user selects to print the current coffees, print the drink type and ingredients of each drink to the console. Creating objects for testing all classes and all methods in the main method

Answer 1

Save all these files in the same folder

1 // Save this as "HowToMakeDrink.java" 2 3 4 5 public interface HowToMakeDrink { public void prepare(); }

// Save this as "HowToMakeDrink.java"

public interface HowToMakeDrink {

    public void prepare();

}

1 2 3 // Save this as "Coffee.java" poblic abstract class Coffee implements HowToMakeDrink { private String coffeetype; private double price; private string storename; 4 public coffee(String coffeetype, double price, string storename) { this.coffeetype = coffeetype; this.price = price; this.storename storename; 5 6 7 8 9 10 11 12 13 14 15 16 بہا public String getcoffeetype() { return coffeetype; } public void setcoffeetype(String coffeetype) { this.coffeetype = coffeetype; 17 18 } public double getPrice() { return price; } public void setPrice(double price) { this.price = price; 19 20 21 22 23 24 25 26 27 28 29 30 31 بہ public String getstorename() { return storename; } public void setstorename(String storename) { this.storename = storename; 32 } 33 34 35 36 37 38 public void prepare() { System.out.println("Coffee Type :" + coffeetype); } public abstract void ingredient(); }

// Save this as "Coffee.java"

public abstract class Coffee implements HowToMakeDrink {

    private String coffeetype;

    private double price;

    private String storename;

    public Coffee(String coffeetype, double price, String storename) {

        this.coffeetype = coffeetype;

        this.price = price;

        this.storename = storename;

    }

    public String getCoffeetype() {

        return coffeetype;

    }

    public void setCoffeetype(String coffeetype) {

        this.coffeetype = coffeetype;

    }

    public double getPrice() {

        return price;

    }

    public void setPrice(double price) {

        this.price = price;

    }

    public String getStorename() {

        return storename;

    }

    public void setStorename(String storename) {

        this.storename = storename;

    }

    public void prepare() {

        System.out.println("Coffee Type :" + coffeetype);

    }

    public abstract void ingredient();

}

// CoffeeMocha.java public class coffeeMocha extends Coffee { 2 3 4 public CoffeeMocha(String coffeetype, double price, string storename) { super(coffeetype, price, storename); 5 6 7 } 8 public void prepare() { System.out.println("Coffee Type :" + super.getcoffeetype()); 9 10 } 11 12 13 14 public void ingredient() { System.out.println("Ingredients :Hot milk, chocolate syrup,cocoa powder, sugar"); } 15 16 } 17

// CoffeeMocha.java

public class CoffeeMocha extends Coffee {

    public CoffeeMocha(String coffeetype, double price, String storename) {

        super(coffeetype, price, storename);

    }

    public void prepare() {

        System.out.println("Coffee Type :" + super.getCoffeetype());

    }

    public void ingredient() {

        System.out.println("Ingredients :Hot milk,chocolate syrup,cocoa powder,sugar");

    }

}

1 // Save this as "DarkchocolateMocha.java" peblic class DarkchocolateMocha extends Coffee { 2 3 4 5 public DarkChocolateMocha(string coffeetype, double price, string storename) { super(coffeetype, price, storename); } 6 7 8 public void prepare() { System.out.println("Coffee Type :" 9 + super.getcoffeetype()); } public void ingredient() { System.out.println("Ingredients :Hot milk,ground coffee, cocoa powder, sugar, vanilla extract, whipped cream"); 10 11 12 13 14 15 16 17 18 } }

// Save this as "DarkChocolateMocha.java"

public class DarkChocolateMocha extends Coffee {

    public DarkChocolateMocha(String coffeetype, double price, String storename) {

        super(coffeetype, price, storename);

    }

    public void prepare() {

        System.out.println("Coffee Type :" + super.getCoffeetype());

    }

    public void ingredient() {

        System.out.println("Ingredients :Hot milk,ground coffee,cocoa powder,sugar,vanilla extract,whipped cream");

    }

}

1 2 !! PeppermintMocha.java public class PeppermintMocha extends Coffee { private double peppermintsyrubAmount; 3 4 5 6 7 public PeppermintMocha(String coffeetype, double price, String storename, double peppermintsyrubAmount) { super(coffeetype, price, storename); this.peppermintsyrubAmount = peppermintsyrubAmount; 8 } 9 10 11 public double getPeppermintsyrubAmount() { return peppermintsyrubAmount; 12 } 13 14 15 public void setPeppermintsyrubAmount(double peppermintsyrubAmount) { this.peppermintsyrubAmount = peppermintSyrubAmount; 16 } 17 18 19 public void prepare() { System.out.println("Coffee Type :" + super.getCoffeetype()); 20 } 21 22 23 public void ingredient() { System.out.println("Ingredients : Hot milk, Mocha Sauce, Brewed Espresso, Peppermint Syrup , whipped cream"); 24 25 26 } 27 }

// PeppermintMocha.java

public class PeppermintMocha extends Coffee {

    private double peppermintSyrubAmount;

    public PeppermintMocha(String coffeetype, double price, String storename, double peppermintSyrubAmount) {

        super(coffeetype, price, storename);

        this.peppermintSyrubAmount = peppermintSyrubAmount;

    }

    public double getPeppermintSyrubAmount() {

        return peppermintSyrubAmount;

    }

    public void setPeppermintSyrubAmount(double peppermintSyrubAmount) {

        this.peppermintSyrubAmount = peppermintSyrubAmount;

    }

    public void prepare() {

        System.out.println("Coffee Type :" + super.getCoffeetype());

    }

    public void ingredient() {

        System.out.println("Ingredients :Hot milk,Mocha Sauce,Brewed Espresso, Peppermint Syrup ,whipped cream");

    }

}

1 2 3 Save this as "WhiteChocolate Mocha.java" public class White ChocolateMocha extends coffee { 4 public WhiteChocolate Mocha(String coffeetype, double price, string storename) { super(coffeetype, price, storename); 5 } 6 7 8 public void prepare() { System.out.println("Coffee Type :" + super.getcoffeetype()); 9 10 11 } 12 gnuBugs 13 public void ingredient() { System.out.println("Ingredients :Hot milk, white chocolate sauce, espresso , whipped cream, chocolate chips"); 14 15 16 } 17 انها

// Save this as "WhiteChocolateMocha.java"

public class WhiteChocolateMocha extends Coffee {

    public WhiteChocolateMocha(String coffeetype, double price, String storename) {

        super(coffeetype, price, storename);

    }

    public void prepare() {

        System.out.println("Coffee Type :" + super.getCoffeetype());

    }

    public void ingredient() {

        System.out.println("Ingredients :Hot milk,white chocolate sauce, espresso ,whipped cream,chocolate chips");

    }

}

1 2 3 [Test.java import java.util.ArrayList; import java.util.Scanner; 4 5 6 public class Test { Run | Debug public static void main(String[] args) { int choice; Scanner sc = new Scanner(System.in); ArrayList<Coffee> arl = new ArrayList<Coffee>(); 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 while (true) { System.out.println("\n1.coffeeMocha"); System.out.println("2.Darkchocolate Mocha"); System.out.println("3.PeppermintMocha"); System.out.println("4.WhiteChocolate Mocha"); System.out.println("5.Display All"); System.out.println("6.Exit"); System.out.print("Enter Choice :"); choice = sc.nextInt(); switch (choice) { case 1: { System.out.print("Enter Price :$"); double price = sc.nextDouble(); sc.nextLine(); System.out.print("Enter Store Name :"); String name = sc.nextLine(); CoffeeMocha cm = new CoffeeMocha("CoffeeMocha", price, name); arl.add(cm); continue; 27 28 29 } 30 31 32 33 34 35 36 case 2: { System.out.print("Enter Price :$"); double price = sc.nextDouble(); sc.nextLine(); System.out.print("Enter Store Name :"); String name = sc.nextLine(); 37

38 39 DarkchocolateMocha dm = new DarkchocolateMocha("Drinkchocolate Mocha", price, name); arl.add(dm); continue; 40 41 } 42 43 44 45 46 47 case 3: { System.out.print("Enter Price :$"); double price = sc.nextDouble(); sc.nextLine(); System.out.print("Enter Store Name :"); String name = sc.nextLine(); System.out.print("Peppermint Syrub Amount :"); double amt = sc.nextDouble(); PeppermintMocha pm = new PeppermintMocha("PeppermintMocha", price, name, amt); arl.add(pm); continue; 48 49 50 51 52 } 53 54 55 56 57 58 case 4: { System.out.print("Enter Price :$"); double price = sc.nextDouble(); sc.nextLine(); System.out.print("Enter Store Name :"); String name = sc.nextLine(); WhiteChocolateMocha wcm = new Whitechocolate Mocha("WhiteChocolate Mocha", price, name); arl.add(wcm); continue; 59 60 61 62 63 } 64 65 case 5: { displayAll(arl); continue; 66 67 } 68 case 6: { System.out.println("** Invalid choice **"); 69 70 بہا 71 } 72 } 73 74

54 55 56 57 58 59 60 61 case 4: { System.out.print("Enter Price :$"); double price = sc.nextDouble(); sc.nextLine(); System.out.print("Enter Store Name :"); string name = sc.nextLine(); WhiteChocolateMocha wcm = new WhiteChocolateMocha("WhiteChocolateMocha", price, name); arl.add(wcm); continue; 62 63 64 } 65 66 case 5: { displayAll(arl); continue; } 67 68 69 70 case 6: { System.out.println("** Invalid Choice **"); } } } 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 private static void displayAll(ArrayList<Coffee> arl) { for (int i = 0; i < arl.size(); i++) { arl.get(i).prepare(); System.out.println("Price:$" + arl.get(i).getPrice()); arl.get(i).ingredient(); System.out.println(". "); } } }

// Test.java

import java.util.ArrayList;

import java.util.Scanner;

public class Test {

    public static void main(String[] args) {

        int choice;

        Scanner sc = new Scanner(System.in);

        ArrayList<Coffee> arl = new ArrayList<Coffee>();

        while (true) {

            System.out.println("\n1.CoffeeMocha");

            System.out.println("2.DarkChocolateMocha");

            System.out.println("3.PeppermintMocha");

            System.out.println("4.WhiteChocolateMocha");

            System.out.println("5.Display All");

            System.out.println("6.Exit");

            System.out.print("Enter Choice :");

            choice = sc.nextInt();

            switch (choice) {

                case 1: {

                    System.out.print("Enter Price :$");

                    double price = sc.nextDouble();

                    sc.nextLine();

                    System.out.print("Enter Store Name :");

                    String name = sc.nextLine();

                    CoffeeMocha cm = new CoffeeMocha("CoffeeMocha", price, name);

                    arl.add(cm);

                    continue;

                }

                case 2: {

                    System.out.print("Enter Price :$");

                    double price = sc.nextDouble();

                    sc.nextLine();

                    System.out.print("Enter Store Name :");

                    String name = sc.nextLine();

                    DarkChocolateMocha dm = new DarkChocolateMocha("DrinkChocolateMocha", price, name);

                    arl.add(dm);

                    continue;

                }

                case 3: {

                    System.out.print("Enter Price :$");

                    double price = sc.nextDouble();

                    sc.nextLine();

                    System.out.print("Enter Store Name :");

                    String name = sc.nextLine();

                    System.out.print("Peppermint Syrub Amount :");

                    double amt = sc.nextDouble();

                    PeppermintMocha pm = new PeppermintMocha("PeppermintMocha", price, name, amt);

                    arl.add(pm);

                    continue;

                }

                case 4: {

                    System.out.print("Enter Price :$");

                    double price = sc.nextDouble();

                    sc.nextLine();

                    System.out.print("Enter Store Name :");

                    String name = sc.nextLine();

                    WhiteChocolateMocha wcm = new WhiteChocolateMocha("WhiteChocolateMocha", price, name);

                    arl.add(wcm);

                    continue;

                }

                case 5: {

                    displayAll(arl);

                    continue;

                }

                case 6: {

                    System.out.println("** Invalid Choice **");

                }

            }

        }

    }

    private static void displayAll(ArrayList<Coffee> arl) {

        for (int i = 0; i < arl.size(); i++) {

            arl.get(i).prepare();

            System.out.println("Price:$" + arl.get(i).getPrice());

            arl.get(i).ingredient();

            System.out.println("_____________________________");

        }

    }

}

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