Question

This is my code I need to complete it?

//The code

package arraylists;

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

/**
*
*
*/
public class SoftOpening {
  
public static void main(String[] args) {
  
  
Scanner input = new Scanner(System.in);
  
ArrayList foodList = generateMenu();
  
User user = generateUser(input);
user.introduce();
  
userBuyFood(foodList, user, input);
user.introduce();
}
public static ArrayList generateMenu(){
  
ArrayList foodList = new ArrayList<>();
  
Food pizza1 =new Food(1,"pizza","Seafood",11,12);
Food pizza2 =new Food(2,"pizza","Beef",9,10);
Food Friedrice =new Food(3,"fried rice","Seafood",5,12);
Food Noodles =new Food(4,"noodles","Beaf",6,14);
  
foodList.add(pizza1);
foodList.add(pizza2);
foodList.add(Friedrice);
foodList.add(Noodles);
  
return foodList ;
}
  
public static void getMenu(ArrayList foodlist){
  
  
for (int i =0;i
System.out.println(foodlist.get(i));

}
  
}
  
}
Q1: generateUser(Scanner in) that generates a user whose account and money are added by using the Scanner parameter. ?

Q2: userBuyFood(ArrayList, User user, Scanner in) to invoke the getMenu(), ask the user to selects the foods in the menu, compute the cost and invoke the addExpense() from the User class?

Q3: Invoke the method introduce() of the User object to show his/her balance ?

public class Food {
private int id;
private String name;
private String type;
private int size;
private double price;
  
public Food(int id, String name,String type,int size,double price){
this.id= id;
this.name= name;
this.type= type;
this.size= size;
this.price= price;
  
}

public void setId(int id) {
this.id = id;
}
  
public void setName(String name) {
this.name = name;
}

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

public void setSize(int size) {
this.size = size;
}
  
public void setPrice(double price) {
this.price = price;
}
  
public int getId() {
return id;
}
  
public String getName() {
return name;
}
  
public String getType() {
return type;
}

public double getPrice() {
return price;
}

public int getSize() {
return size;
}

  
@Override
public String toString(){
return " [Id] "+id + " [Name] "+ name+ " [Type] "+size+" [Size] "+type+" [Type] "+price+" [Price] ";

}   
}

public class FoodTest {
  
public static void main(String[] args) {
  
ArrayList foodList = new ArrayList<>();
Food pizza1 =new Food(1,"pizza","Seafood",11,12);
Food pizza2 =new Food(2,"pizza","Beef",9,10);
Food Friedrice =new Food(3,"fried rice","Seafood",5,12);
Food Noodles =new Food(4,"noodles","Beaf",6,14);
  
foodList.add(pizza1);
foodList.add(pizza2);
foodList.add(Friedrice);
foodList.add(Noodles);
  
for (int i =0;i
System.out.println(foodList.get(i));

}
  
  
  
  
}
  
}

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

package arraylists;

import java.util.Scanner;

/**

*

*

*/

public class User {

   private String accountName;

   private String password ;

   private double money;

public void setAccountName(String accountName) {

this.accountName = accountName;

}

  

public void setPassword(String password) {

this.password = password;

}

  

public void setMoney(double money) {

this.money = money;

}

public String getAccountName() {

return accountName;

}

  

public String getPassword() {

return password;

}

  

public double getMoney() {

return money;

}

  

  

public void introduce() {

  

  

System.out.println(" The account Name is "+accountName+" The balance is "+money+" $ ");

  

}

  

   public void addExpense(double value, Scanner in){

   if (value > money)

   System.out.println(" Plan to expence "+value+" $ but no sufficient ");

   else {

   System.out.println(" Plan to expence "+value+" $ ");

   System.out.println(" please enter password ");

  

   String password1 = in.nextLine();

   if (password.equals(password1))

   {

   money =money-value;

  

   System.out.println(" expence "+value+" $ and balance "+money+" $ ");

  

   }

  

   }

   }

public void addMoney(double value){

  

   money += value;

   System.out.println(" Got "+value+" $ as income , balance is "+money+" $ ");

   //System.out.println(accountName+"has a balance of "+money);

}

}

Answer 1

Please find answers to all your questions ( At the end of this I have added screenshot of my output and java code for all classes along with function so you can directly refer to it ):

Q1: generateUser(Scanner in) that generates a user whose account and money are added by using the Scanner parameter. ?

// generateUser mehote with Scanner input parameter to read input from user
        private static User generateUser(Scanner input) {

                // get accountName
                System.out.println("Enter your accountName: ");
                String accountName = input.nextLine();
                
                // get password         
                System.out.println("Enter your password: ");
                String password = input.nextLine();
                
                // get add money amount
                System.out.println("How much money to add in your account : ");
                String money = input.nextLine();
                double money1 = Double.parseDouble(money);
                
                User u1 = new User();
                // call respective setter to set the value for user object and then return that user obj
                u1.setAccountName(accountName);
                u1.setPassword(password);
                u1.setMoney(money1);
                
                return u1;
        }

Q2: userBuyFood(ArrayList, User user, Scanner in) to invoke the getMenu(), ask the user to selects the foods in the menu, compute the cost and invoke the addExpense() from the User class?

    // needed userBuyFood method with ArrayList, User user, Scanner in parameters
        private static void userBuyFood(ArrayList<Food> foodList, User user,
                        Scanner input) {
                // call getMenu to show ask the user to selects the foods in the menu
                getMenu(foodList);
                // Here i am asking user to enter id of food to match with foodlist.
                System.out.println(" Select food from the menu ( Enter Id ): ");
                int id = Integer.parseInt(input.nextLine());
                double price = 0;
                
                // check the matching id and get the corresponding price of that food item
                for (Food food : foodList) {
                        if(food.getId() == id){
                                price = food.getPrice();
                                break;
                        }
                }
                // if price is 0 means user has entered wrong data in this case just return.
                if(price == 0) {
                        System.out.println("Wrong input");
                        return;
                }
                user.addExpense(price, input);
        }

Q3: Invoke the method introduce() of the User object to show his/her balance ?

This method was already there no need to change anything it is working properly.

Please see entire code for SoftOpening.java i have not done any changes in User.java and Food.java

1. SoftOpening.java

package arraylists;

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

public class SoftOpening {

        public static void main(String[] args) {

                Scanner input = new Scanner(System.in);
                
                ArrayList<Food> foodList = generateMenu();

                User user = generateUser(input);
                user.introduce();

                userBuyFood(foodList, user, input);
                user.introduce();
                
        }

        // needed userBuyFood method with ArrayList, User user, Scanner in parameters
        private static void userBuyFood(ArrayList<Food> foodList, User user,
                        Scanner input) {
                // call getMenu to show ask the user to selects the foods in the menu
                getMenu(foodList);
                // Here i am asking user to enter id of food to match with foodlist.
                System.out.println(" Select food from the menu ( Enter Id ): ");
                int id = Integer.parseInt(input.nextLine());
                double price = 0;
                
                // check the matching id and get the corresponding price of that food item
                for (Food food : foodList) {
                        if(food.getId() == id){
                                price = food.getPrice();
                                break;
                        }
                }
                // if price is 0 means user has entered wrong data in this case just return.
                if(price == 0) {
                        System.out.println("Wrong input");
                        return;
                }
                user.addExpense(price, input);
        }

        // generateUser mehote with Scanner input parameter to read input from user
        private static User generateUser(Scanner input) {

                // get accountName
                System.out.println("Enter your accountName: ");
                String accountName = input.nextLine();
                
                // get password         
                System.out.println("Enter your password: ");
                String password = input.nextLine();
                
                // get add money amount
                System.out.println("How much money to add in your account : ");
                String money = input.nextLine();
                double money1 = Double.parseDouble(money);
                
                User u1 = new User();
                // call respective setter to set the value for user object and then return that user obj
                u1.setAccountName(accountName);
                u1.setPassword(password);
                u1.setMoney(money1);
                
                return u1;
        }

        public static ArrayList<Food> generateMenu(){

                ArrayList<Food> foodList = new ArrayList<Food>();

                Food pizza1 = new Food(1,"pizza","Seafood",11,12);
                Food pizza2 = new Food(2,"pizza","Beef",9,10);
                Food Friedrice = new Food(3,"fried rice","Seafood",5,12);
                Food Noodles = new Food(4,"noodles","Beaf",6,14);

                foodList.add(pizza1);
                foodList.add(pizza2);
                foodList.add(Friedrice);
                foodList.add(Noodles);

                return foodList ;
        }

        public static void getMenu(ArrayList<Food> foodlist){
                for (int i =0; i < foodlist.size(); i++)
                        System.out.println(foodlist.get(i));
        }
}

Output screen shot :