Question

Problem: Coffee(Java)

Design and implement a program that manages coffees. First, implement an abstract class named Coffee. The Coffee class has three member variables: coffee type(does not mention the data type of the variable coffeeType), 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

Hi,

Java classes below. Prices of the coffees are assumed. Please correct the values.

------------------------

/**
*
*/
package coffee;

import java.util.ArrayList;
import java.util.Scanner;

/*******************************************************
* @author
* CoffeeDriverMain.java
*******************************************************/
public class CoffeeDriverMain {

   /**
   * @param args
   */
   public static void main(String[] args) {
       // TODO Auto-generated method stub
       Scanner sc = new Scanner(System.in);
        ArrayList<Coffee> coffeeList = new ArrayList<Coffee>();
        int coffeeOption;
        int menuChoice;
        do{
           System.out.println("---------- Coffee Menu -----------");
            System.out.println("1.Coffee Type.");
            System.out.println("2.Print Coffee Mochas.");
            System.out.println("3.Exit The Program. -->");
            System.out.println("----------------------------------");
            System.out.println("Please enter your menu choice:= ");
            menuChoice = sc.nextInt();
            switch (menuChoice){
                case 1:
                    System.out.println("1.WhititeChocolateMocha");
                    System.out.println("2.DarkChocolateMocha");
                    System.out.println("3.CoffeeMocha");
                    System.out.println("4.PeppermintMocha");
                    System.out.println("Please enter coffee:= ");
                    coffeeOption = sc.nextInt();
                    switch (coffeeOption){
                        case 1:
                           WhititeChocolateMocha whititeChocolateMocha = new WhititeChocolateMocha();
                           whititeChocolateMocha.ingredient();
                           coffeeList.add(whititeChocolateMocha);
                        break;
                        case 2:
                           DarkChocolateMocha darkChocolateMocha = new DarkChocolateMocha();
                           darkChocolateMocha.ingredient();
                           coffeeList.add(darkChocolateMocha);
                        break;
                        case 3:
                           CoffeeMocha coffeeMocha = new CoffeeMocha();
                           coffeeMocha.ingredient();
                           coffeeList.add(coffeeMocha);
                        break;
                        case 4:
                           PeppermintMocha peppermintMocha = new PeppermintMocha();
                           peppermintMocha.ingredient();
                           coffeeList.add(peppermintMocha);
                    }
                    break;
                case 2:
                    for (Coffee coffee : coffeeList) {
                        System.out.println("Coffee Type: " + coffee.getType());
                        System.out.println("Price: " + coffee.getPrice());
                        coffee.prepare();
                    }
                    break;
                case 3:
                   System.out.println("Program Exit.Thanks for visiting Coffee Bucks.");
                   System.out.println("Have a nice day. Good Bye!");
                   break;
                default:
                   System.out.println("Invalid Option!");
            }
        }while (menuChoice!=3);
   }
}

----------------------------------------------------------

/**
*
*/
package coffee;

import java.util.Scanner;

/**
* @author
*
*/
public class PeppermintMocha extends Coffee {
   private double peppermintSyrubAmount;

    public PeppermintMocha() {
        type = "PepperMintMocha";
        price = 20.00;
    }

    public double getPeppermintSyrubAmount() {
        return peppermintSyrubAmount;
    }

    public void setPeppermintSyrubAmount(double peppermintSyrubAmount) {
        this.peppermintSyrubAmount = peppermintSyrubAmount;
    }

    @Override
    void ingredient() {
        Scanner sc = new Scanner(System.in);
        System.out.print("Please enter the amount of peppermint(ml):= ");
        double amountPeppermint = sc.nextDouble();
        setPeppermintSyrubAmount(amountPeppermint);
    }

    @Override
    public void prepare() {
        System.out.println("Peppermint in ml:= " + getPeppermintSyrubAmount());
    }
}

--------------------------------------------------

/**
*
*/
package coffee;

import java.util.Scanner;

/**
* @author
*
*/
public class CoffeeMocha extends Coffee {
   private String[] ingredients;

    public CoffeeMocha() {
        type = "CoffeeMocha";
        price = 15.00;
    }

    @Override
    void ingredient() {
        Scanner sc = new Scanner(System.in);
        System.out.print("Please enter the number of ingredients:= ");
        int numIngredients = sc.nextInt();
        sc.nextLine();
        ingredients = new String[numIngredients];
        for(int i=0;i<numIngredients;i++){
            ingredients[i] = sc.nextLine();
        }
    }

    @Override
    public void prepare() {
        System.out.println("CoffeeMocha ingredients:= ");
        for(int i = 0; i< ingredients.length; i++){
            System.out.println("Ingredient " + ingredients[i]);
        }
    }
}

----------------------------------------

/**
*
*/
package coffee;

import java.util.Scanner;

/**
* @author
*
*/
public class DarkChocolateMocha extends Coffee {
   private String[] ingredients;

    public DarkChocolateMocha() {
        type = "DarkChocolateMocha";
        price = 10.00;
    }

    @Override
    void ingredient() {
        Scanner sc = new Scanner(System.in);
        System.out.print("Please enter the number of ingredients:= ");
        int numIngredients = sc.nextInt();
        sc.nextLine();
        ingredients = new String[numIngredients];
        for(int i=0;i<numIngredients;i++){
             ingredients[i] = sc.nextLine();
        }
    }

    @Override
    public void prepare() {
        System.out.println("DarkChocolateMocha ingredients:= ");
        for(int i = 0; i< ingredients.length; i++){
            System.out.println("Ingredient " + ingredients[i]);
        }
    }

}

------------------------------------------

/**
*
*/
package coffee;

/**
* @author
* Coffee.java
*/
public abstract class Coffee implements HowToMakeDrink {
   String type;
   String storename="CoffeeBucks Cafe";
    double price;
  
    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getStorename() {
        return storename;
    }

    public void setStorename(String storename) {
        this.storename = storename;
    }

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    abstract void ingredient();
}

-----------------------------------------

/**
*
*/
package coffee;

/**
* @author
* Coffee.java
*/
public abstract class Coffee implements HowToMakeDrink {
   String type;
   String storename="CoffeeBucks Cafe";
    double price;
  
    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getStorename() {
        return storename;
    }

    public void setStorename(String storename) {
        this.storename = storename;
    }

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    abstract void ingredient();
}

--------------------------------------------------------------------

TeeDriverMain.java - Eclipse IDE earch Project Run Window Help T La 5 DarkChocolate Mocha.java Coffee Mocha.java PeppermintMocha.java Coffee DriverMain.java ® WhititeChocolate Mocha.java Coffee.java } 60 61 62 OL a 63 break; case 2: for (Coffee coffee : coffeeList) { System.out.println("Coffee Type: " + coffee.getTy System.out.println("Price: + coffee.getPrice()) coffee.prepare(); } 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 break; case 3: System.out.println("Program Exit. Thanks for visiting System.out.println("Have a nice day. Good Bye!"); break; default: System.out.println("Invalid Option!"); } }while (menuChoice!=3); } < Writable Smart Insert 70: 87: 2999