Question

This code in java:

Create a class named car. A car has color, model, company, registration number. You can stear a car. A car can move forward. A car has a gear box. A typical gear decide weather car is moving forward or backward. A person owns a car.

Kindly add some other functionalities like refuel

Answer 1

CODE:

In "Car" class:

package carproperties;
public class Car
{
    //variables
    private String color, model, company, regNumber,owner;
    private char gear;
    //getters and setters
    public String getOwner() {
        return owner;
    }

    public void setOwner(String owner) {
        this.owner = owner;
    }
  
    public String getCompany() {
        return company;
    }

    public void setCompany(String company) {
        this.company = company;
    }

    public char getGear() {
        return gear;
    }
    //setGear function also prints the status of the gearBox
    // if incorrect input returns without changing the data
    public void setGear(char gear) {
        if(gear == 'F')
            System.out.println("Car is moving in Forward direction.");
        else if (gear == 'B')
            System.out.println("Car is moving in Backward direction.");
        else if(gear == 'N')
            System.out.println("Car is not moving.");
        else
        {
            System.out.println("Incorrect Input");
            return;
        }
        this.gear = gear;
    }
    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public String getModel() {
        return model;
    }

    public void setModel(String model) {
        this.model = model;
    }

    public String getRegNumber() {
        return regNumber;
    }

    public void setRegNumber(String regNumber) {
        this.regNumber = regNumber;
    }
    //constructor
    public Car(String color, String model, String company, String regNumber, String owner, char gear) {
        this.color = color;
        this.model = model;
        this.company = company;
        this.regNumber = regNumber;
        this.owner = owner;
        this.gear = gear;
    }

    //This function takes in steering direction and prints it
    public void stear(String direction)
    {
        System.out.println("Car is being steared in "+direction+" direction");
    }
    //prints a message
    public void refuel()
    {
        System.out.println("Car is refueled");
    }
}

IN Driver program, "CarProperties":

package carproperties;

import java.util.Scanner;

public class CarProperties
{
    //driver code for example
    public static void main(String[] args)
    {
        //car class variable for example
        Car c = new Car("Red","Mustang", "Ford","US2345","Jeff", 'F');
        Scanner scan = new Scanner(System.in);
        // to get user option choice
        int con;
        do
        {
            // prints the choice and gets an input
            System.out.print("Choose:"+
                                "\n1.\tStear the car"+
                                "\n2.\tChange Gear of the car"+
                                "\n3.\tRefuel the car"+
                                "\n4.\tExit"+
                                "\nChoice: ");
            con = scan.nextInt();
            // using switch case on the value of "con" till con is not 4
            switch(con)
            {
                case 1 :
                    System.out.print("Enter the direction to stear(Left/Right): ");
                    String dir = scan.next();
                    c.stear(dir);
                    break;
                case 2:
                    System.out.print("Enter the update gear(F/B/N) ");
                    char ch = scan.next().charAt(0);
                    c.setGear(ch);
                    break;
                case 3:
                    c.refuel();
                    break;
                case 4:
                    break;
                default:
                    System.out.println("Incorrect Input. Please try again");
              
            }
        }while(con!=4);
    }
  
}

OUTPUT:

Choose:
1.   Stear the car
2.   Change Gear of the car
3.   Refuel the car
4.   Exit
Choice: 1
Enter the direction to stear(Left/Right): Left
Car is being steared in Left direction
Choose:
1.   Stear the car
2.   Change Gear of the car
3.   Refuel the car
4.   Exit
Choice: 2
Enter the update gear(F/B/N) B
Car is moving in Backward direction.
Choose:
1.   Stear the car
2.   Change Gear of the car
3.   Refuel the car
4.   Exit
Choice: 3
Car is refueled
Choose:
1.   Stear the car
2.   Change Gear of the car
3.   Refuel the car
4.   Exit
Choice: 4

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