Question

JAVA

Problem:  Coffee   

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

Note: Could you plz go through this code and let me know if u need any changes in this.Thank You
=================================

// HowToMakeDrink.java

public interface HowToMakeDrink {

   public void prepare();

}

================================

// Coffee.java

public abstract class Coffee implements HowToMakeDrink {
private String coffeetype;
private double price;
private String storename;
  
  
   /**
   * @param coffeetype
   * @param price
   * @param storename
   */
   public Coffee(String coffeetype, double price, String storename) {
       this.coffeetype = coffeetype;
       this.price = price;
       this.storename = storename;
   }

  

   /**
   * @return the coffeetype
   */
   public String getCoffeetype() {
       return coffeetype;
   }

   /**
   * @param coffeetype the coffeetype to set
   */
   public void setCoffeetype(String coffeetype) {
       this.coffeetype = coffeetype;
   }

   /**
   * @return the price
   */
   public double getPrice() {
       return price;
   }

   /**
   * @param price the price to set
   */
   public void setPrice(double price) {
       this.price = price;
   }

   /**
   * @return the storename
   */
   public String getStorename() {
       return storename;
   }

   /**
   * @param storename the storename to set
   */
   public void setStorename(String storename) {
       this.storename = storename;
   }

   @Override
   public void prepare() {
       System.out.println("Coffee Type :"+coffeetype);

   }
  
   public abstract void ingredient();

}

=======================================

// CoffeeMocha.java

public class CoffeeMocha extends Coffee {

   public CoffeeMocha(String coffeetype, double price, String storename) {
       super(coffeetype, price, storename);
   }

   @Override
   public void prepare() {
       System.out.println("Coffee Type :"+super.getCoffeetype());
   }

   @Override
   public void ingredient() {
       System.out.println("Ingredients :Hot milk,chocolate syrup,cocoa powder,sugar");
      
   }
}

=======================================

// DarkChocolateMocha.java

public class DarkChocolateMocha extends Coffee {

   public DarkChocolateMocha(String coffeetype, double price, String storename) {
       super(coffeetype, price, storename);
   }
  
   @Override
   public void prepare() {
       System.out.println("Coffee Type :"+super.getCoffeetype());
   }

   @Override
   public void ingredient() {
       System.out.println("Ingredients :Hot milk,ground coffee,cocoa powder,sugar,vanilla extract,whipped cream");
      
   }

}

======================================

// PeppermintMocha.java

public class PeppermintMocha extends Coffee {
   private double peppermintSyrubAmount;

   /**
   * @param coffeetype
   * @param price
   * @param storename
   * @param peppermintSyrubAmount
   */
   public PeppermintMocha(String coffeetype, double price, String storename,
           double peppermintSyrubAmount) {
       super(coffeetype, price, storename);
       this.peppermintSyrubAmount = peppermintSyrubAmount;
   }

   /**
   * @return the peppermintSyrubAmount
   */
   public double getPeppermintSyrubAmount() {
       return peppermintSyrubAmount;
   }

   /**
   * @param peppermintSyrubAmount
   * the peppermintSyrubAmount to set
   */
   public void setPeppermintSyrubAmount(double peppermintSyrubAmount) {
       this.peppermintSyrubAmount = peppermintSyrubAmount;
   }

   @Override
   public void prepare() {
       System.out.println("Coffee Type :" + super.getCoffeetype());
  
   }

   @Override
   public void ingredient() {
       System.out.println("Ingredients :Hot milk,Mocha Sauce,Brewed Espresso, Peppermint Syrup ,whipped cream");

   }

}

======================================

// WhiteChocolateMocha.java

public class WhiteChocolateMocha extends Coffee {

   public WhiteChocolateMocha(String coffeetype, double price, String storename) {
       super(coffeetype, price, storename);
   }
  
   @Override
   public void prepare() {
       System.out.println("Coffee Type :"+super.getCoffeetype());

   }

   @Override
   public void ingredient() {
       System.out.println("Ingredients :Hot milk,white chocolate sauce, espresso ,whipped cream,chocolate chips");

   }
}

=======================================

// Test.java

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

public class Test {

   public static void main(String[] args) {
       int choice;

       /*
       * Creating an Scanner class object which is used to get the inputs
       * entered by the user
       */
       Scanner sc = new Scanner(System.in);

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

       while (true) {
           // Getting the input entered by the user
           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("_____________________________");
          
       }
      
   }

}

=======================================

Output:

1.CoffeeMocha
2.DarkChocolateMocha
3.PeppermintMocha
4.WhiteChocolateMocha
5.Display All
6.Exit
Enter Choice :1
Enter Price :$12
Enter Store Name :CoffeeDay

1.CoffeeMocha
2.DarkChocolateMocha
3.PeppermintMocha
4.WhiteChocolateMocha
5.Display All
6.Exit
Enter Choice :2
Enter Price :$14
Enter Store Name :CafeCofeeDay

1.CoffeeMocha
2.DarkChocolateMocha
3.PeppermintMocha
4.WhiteChocolateMocha
5.Display All
6.Exit
Enter Choice :5
Coffee Type :CoffeeMocha
Price:$12.0
Ingredients :Hot milk,chocolate syrup,cocoa powder,sugar
_____________________________
Coffee Type :DrinkChocolateMocha
Price :$14.0
Ingredients :Hot milk,ground coffee,cocoa powder,sugar,vanilla extract,whipped cream
_____________________________

1.CoffeeMocha
2.DarkChocolateMocha
3.PeppermintMocha
4.WhiteChocolateMocha
5.Display All
6.Exit
Enter Choice :6

===============================Thank You