Question

in java pls

Write a Car Dealership management program. This program will allow the employees of the Dealership to add cars to their database and sell them.

You will be implementing two classes: Car and CarDealership. Car will store data associated with the cars and CarDealership will be the management program.

Note: 5 points of your grade is based on Coding Style. You will need to update the Starter Code to follow the standards described here. Use the "Run" button to check your Coding Style without using a submission.

Instructions

Follow the instructions for each class.

Car class

Implement the Car class using the specifications below. There is no Javadoc for this assignment.

FIELDS

Name Type Modifier

make String private

model String private

year int private

CONSTRUCTOR

Parameters (order matters) Modifier

String make, String model, int year public

METHODS

Name Return Type Parameters Description

getMake String None Returns the make field.

getModel String None Returns the model field.

getYear int None Returns the year field.

setMake void String Sets the make field to the argument.

setModel void String Sets the model field to the argument.

setYear void int Sets the year field to the argument.

toString String None Returns a String in a specific format.

For example, if a car object has make "Honda", model "Accord", and year "2019", the returned string should be: "Make: Honda | Model: Accord | Year: 2019"

CarDealership class

Our car dealership has a very small parking lot and can only sell three vehicles at a time.

Every time a financial transaction occurs, the dailyTransactions field needs to be updated. Selling services or vehicles are positive increases, while purchasing vehicles are negative decreases. For the purposes of this assignment, you can assume that every car sells for $15,000 and cars are purchased for $10,000. Service prices are listed in the services menu.

FIELDS

Name Type Modifier

carOne Car private

carTwo Car private

carThree Car private

dailyTransactions double private

CONSTRUCTOR

Parameters (order matters) Modifier

Car carOne, Car carTwo, Car carThree public

None public

METHODS

Name Return Type Parameters Description

performMaintenance void Scanner scan Uses a series of prompts to calculate the cost of the maintenance the user wants performed. Updates dailyTransactions accordingly.

sellCar void Scanner scan Uses a series of prompts to sell the customer a car, if one is available. If the user chooses to make the purchase, remove the selected car from the inventory. If the user does not make the purchase, return to the main menu. Updates dailyTransactions accordingly.

buyCar void Scanner scan If one of the car spots is open, purchases a car and saves its information in the open field. If all of the spots are full, returns to the main menu. Updates dailyTransactions accordingly.

printInventory void None Print the current inventory using the formatting described in the next section.

menu void None Implement the user interface described in the next section.

Note: You must create a Scanner object in menu() and pass it as a parameter to the other methods.

performMaintenance

Welcome to the Maintenance Menu!

Please select the service you wish to record:

1. Oil Change ($50)

2. Tire Rotation ($30)

3. Detailing ($100)

4. Tune-up ($200)

[1]

Your selection has been recorded!

Did you sell another service?

1. Yes

2. No

[1]

Please select the service you wish to record:

1. Oil Change ($50)

2. Tire Rotation ($30)

3. Detailing ($100)

4. Tune-up ($200)

[2]

Your selection has been recorded!

Did you sell another service?

1. Yes

2. No

[2]

Thank you! Now returning to the Main Menu...

sellCar

Welcome to the Sales Menu!

Current Inventory is Listed Below:

Make: Honda | Model: Accord | Year: 2019

Make: Toyota | Model: Camry | Year: 2017

Make: Saab | Model: 9-3 | Year: 2005

Did you sell a vehicle?

1. Yes

2. No

[1]

Which vehicle was sold? Please enter the Make, Model, and Year separated by commas.

[Honda,Accord,2019]

The vehicle list has been updated!

Current Inventory is Listed Below:

Make: Toyota | Model: Camry | Year: 2017

Make: Saab | Model: 9-3 | Year: 2005

Did you sell another vehicle?

1. Yes

2. No

[1]

Which vehicle was sold? Please enter the Make, Model, and Year separated by commas.

[Toyota,Camry,2017]

The vehicle list has been updated!

Current Inventory is Listed Below:

Make: Saab | Model: 9-3 | Year: 2005

Did you sell another vehicle?

1. Yes

2. No

[1]

Which vehicle was sold? Please enter the Make, Model, and Year separated by commas.

[Saab,9-3,2005]

The vehicle list has been updated!

No vehicles currently available.

Thank you! Now returning to the Main Menu...

Note: If there are no vehicles in the inventory and the user calls sellCar, the output should be as follows:

Welcome to the Sales Menu!

No vehicles currently available.

Thank you! Now returning to the Main Menu...

buyCar

Welcome to the Purchasing Menu!

Current Inventory is Listed Below:

Make Saab | Model: 9-3 | Year: 2005

Did you purchase a vehicle?

1. Yes

2. No

[1]

Please enter the Vehicle Details!

Make:

[Subaru]

Model:

[Forester]

Year:

[2020]

Current Inventory is Listed Below:

Make: Saab | Model: 9-3 | Year: 2005

Make: Subaru | Model: Forester | Year: 2020

Did you purchase another vehicle?

1. Yes

2. No

[1]

Please enter the Vehicle Details!

Make:

[Chevrolet]

Model:

[Camero]

Year:

[2012]

Current Inventory is Listed Below:

Make: Saab | Model: 9-3 | Year: 2005

Make: Subaru | Model: Forester | Year: 2020

Make: Chevrolet | Model: Camero | Year: 2012

The Vehicle Inventory is now full.

Thank you! Now returning to the Main Menu...

Note: If no cars are in the inventory, you should not attempt to print the inventory. Additionally, if the user selects "No", return to the Main Menu. An example is below.

Welcome to the Purchasing Menu!

Did you purchase a vehicle?

1. Yes

2. No

[2]

Thank you! Now returning to the Main Menu...

printInventory

Current Inventory is Listed Below:

Make: Honda | Model: Accord | Year: 2019

Make: Toyota | Model: Camry | Year: 2017

Make: Saab | Model: 9-3 | Year: 2005

You will need to determine a way to identify which of the car fields is currently storing a car.

menu

Welcome to the Main Menu!

The Daily Transactions value is currently: $0.00

Please select an Option:

1. Perform Maintenance

2. Sell Car

3. Buy Car

4. Print Inventory

5. Quit

[5]

Thank you for using the Car Dealership program!

Print the entire menu for every time you return to it, including the welcome statement. Make sure to keep the daily transactions value up to date in every method.

HINTS

dailyTransactions can be negative. Update it with every transaction.

When printing dailyTransactions, be sure to print two decimal places.

This project does not have a main method. Feel free to create one if you'd like to test your implementation.

You cannot sell cars with an empty inventory.

You must create your Scanner in the menu method and pass it as a parameter to the other methods. Verify that the Scanner is only instantiated once (that is, you should not call menu from any other method).

Note: Your methods will be tested independently of one another. You also need to implement error checking. If an invalid input is passed at any point, print the error message "An error occurred!" and print the main menu. For example:

Welcome to the Main Menu!

The Daily Transactions value is currently: $0.00

Please select an Option:

1. Perform Maintenance

2. Sell Car

3. Buy Car

4. Print Inventory

5. Quit

[7]

An error occurred!

Welcome to the Main Menu!

The Daily Transactions value is currently: $0.00

Please select an Option:

1. Perform Maintenance

2. Sell Car

3. Buy Car

4. Print Inventory

5. Quit

Thank you for using the Car Dealership program!h

Answer 1

import java.util.Scanner;
class Car{
    private String make;
    private String model;
    private int year;
    
    public Car(String make,String model,int year){
        this.make=make;
        this.model=model;
        this.year=year;
    }
    public String getMake(){
        return make;
    }
    public String getModel(){
        return model;
    }
    public int getYear(){
        return Year;
    }
    public void setMake(String make){
        this.make=make;
    }
    public void setModel(String model){
        this.model=model;
    }
    public void setYear(int year){
         this.year=year;
    }
    public String toString(){
        return "Make: "+make+" | Model: "+model+" | Year: "+year;
    }
    
}
class CarDealership{
    private Car carOne;
    private Car carTwo;
    private Car carThree;
    int amount=0;
    public CarDealership(Car carOne,Car carTwo,Car carThree){
         this.carOne=carOne;
         this.carTwo=carTwo;
         this.carThree=carThree;
    }
    public void performMaintenance(Scanner scan){
        System.out.println("Welcome to the Maintenance Menu!")
        System.out.println("Please select the service you wish to record:");
        System.out.println("1. Oil Change ($50)\n2. Tire Rotation ($30)");
        System.out.println("3. Detailing ($100)\n4. Tune-up ($200)");
        int i=sc.nextInt();
        int j=0;
        while(j==0){
        System.out.println("Your selection has been recorded!");
        System.out.println("Did you sell another service?");
        System.out.println("1. Yes\n2. No");
        String s=sc.nextLine();
        if(s.equalsIgnoreCase("No")){
            System.out.println("Thank you! Now returning to the Main Menu...")
            break;
        }
        }
        
    }
    public void sellCar(Scanner scan){
         System.out.println("Welcome to the Sales Menu!");
         int k=0;
         int j=0;
         int count++;
          while(j==0){
         System.out.println("Current Inventory is Listed Below:");
         String str[]=new String[3];
         str[0]=null;
         str[1]=null; str[2]=null;
         if(k!=1){str[0]=carOne.toString();}
         else if(k!=2){str[1]=carTwo.toString();}
         else if(k!=3){str[2]=carThree.toString();}
       
        for(int i=0;i<3;i++){
             if(!(str[i].equals(null))){
             System.out.println(str[i]);}
        }
        System.out.println("Did you sell a vehicle");
        System.out.println("1. Yes\n2. No");
        String s=sc.nextLine();
        if(s.equalsIgnoreCase("Yes")){
            if(count==3){
                System.out.println("No vehicles currently available.Thank you! Now returning to the Main Menu...")
            }
            else{
            System.out.println("Which vehicle was sold? Please enter the Make, Model, and Year separated by commas.");
            String sold=sc.nextLine();
            String arr[]=sold.split(",");
            System.out.println("The vehicle list has been updated!");
            amount+=15000;
            if(carOne.getMake().equals(arr[0])&&carOne.getModel().equals(arr[1])&&Integer.parseInt(carOne.getYear()).equals(arr[2]){
                k=1;
                count++;
            }
            else if(carTwo.getMake().equals(arr[0])&&carTwo.getModel().equals(arr[1])&&Integer.parseInt(carTwo.getYear()).equals(arr[2]){
                k=2;
                count++;
            }
            else if(carThree.getMake().equals(arr[0])&&carThree.getModel().equals(arr[1])&&Integer.parseInt(carThree.getMake()).equals(arr[2]){
                k=3;
                count++;
            }
            else{
                k=0;
            }
            }
            
        }
        else if(s.equalsIgnoreCase("No")){
            System.out.println("Thank you! Now returning to the Main Menu...")
            break;
        }
    }
    public void buyCar(Scanner scan){
        System.out.println("Current Inventory is Listed Below:");
        int k=0;
         int j=0;
          while(j==0){
         System.out.println("Current Inventory is Listed Below:");
         String str[]=new String[3];
         str[0]=null;
         str[1]=null; str[2]=null;
         if(k!=1){str[0]=carOne.toString();}
         else if(k!=2){str[1]=carTwo.toString();}
         else if(k!=3){str[2]=carThree.toString();}
       
        for(int i=0;i<3;i++){
             if(!(str[i].equals(null))){
             System.out.println(str[i]);}
        }
        System.out.println("Did you purchase a vehicle");
        System.out.println("1. Yes\n2. No");
        String s=sc.nextLine();
        if(s.equalsIgnoreCase("Yes")){
            amount-=10000;
            System.out.println("Please enter the vehicle Details!");
            System.out.println("Make: ");
            String Make=sc.nextLine();
            System.out.println("Model: ");
            String Model=sc.nextLine();
            System.out.println("Year: ");
            String Year=sc.nextInt();
            int count=0;
            if(count==0){
            carOne.setMake(Make);
             carOne.setModel(Model);
              carOne.setYear(Year);
                k=1;
                count++;
            }
            else if(count==1){
                carTwo.setMake(Make);
             carTwo.setModel(Model);
              carTwo.setYear(Year);
                k=2;
                count++;
            }
             else if(count==2){
                carThree.setMake(Make);
             carThree.setModel(Model);
              carThree.setYear(Year);
                k=3;
                count++;
            }
            
        }
        else if(s.equalsIgnoreCase("No")){
            System.out.println("Thank you! Now returning to the Main Menu...");
             break;
        }
    }
    public void printInventory(){
        Scanner sc=new Scanner(System.in);
    System.out.println("Welcome to Main Menu!\nThe Daily Transactions value is currently: "+amount);
    System.out.println("Please select an Option:");
    System.out.println("1. Perform Maintenance\n2. Sell Car\n3. Buy Car\n4. Print Inventory\n5. Quit");
    int ch=sc.nextInt();
    switch(ch){
        case 1: performMaintenance();break;
        case 2: sellCar();break;
        case 3: buyCar();break;
        case 4:  printInventory();break;
        case 5: System.out.println("Thank you for using the Car Dealership program!");
                 break;
    }
    
    }
}

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