Answer to Question #164826 in Java | JSP | JSF for aj

Question

Create a super class called car.

a. The car class has the following fields and methods.

-Intspeed;

-doubleregularPrice;

-stringcolor;

-doublegetSalePrice();

b. Create a sub class of car class and name it as pickup. The following fieldsand methods.

-Intweight;

-doublegetSalePrice()

*** If weight is greater than 2000, 15% discount otherwise 25%

c. Create a sub class and name itas Nissan. The following fields and methods.

-Intyear;

-intmanufacturerDiscount;

-doublegetSalePrice()

***From the sale price computed from car class, subtract the manufacturer discount.

d. Create a sub class and name it as Toyota. The following fieldsand methods.

-Intlength;

-doublegetSalePrice()

***If length is less than 20 feet, 10% discount. Otherwise, 15% discount.

e. Create a MyShop class which contains the main() method. Perform the following within the main() method.

-Create an instance of Toyota class and initialize all the fields with appropriate values. Use super(...) method in the constructor for initializing the fields of the super class.

-Create two instances of the Nissan class and initialize all the fields with appropriate values. Use super(...) method in the constructor for initializing the fields of the super class.

-Create an instance of car class and initialize all the fields with appropriate values. Display the sale prices of all instance.

Answer 1

public class Car {
    private int speed;
    private double regularPrice;
    private String color;

    public Car(int speed, double regularPrice, String color) {
        this.speed = speed;
        this.regularPrice = regularPrice;
        this.color = color;
    }

    public double getSalePrice() {
        return regularPrice;
    }
}
public class Pickup extends Car {
    private int weight;

    public Pickup(int speed, double regularPrice, String color, int weight) {
        super(speed, regularPrice, color);
        this.weight = weight;
    }

    public double getSalePrice() {
        return super.getSalePrice() * (weight > 2000 ? 0.85 : 0.75);
    }
}
public class Toyota extends Car {
    private int length;

    public Toyota(int speed, double regularPrice, String color, int length) {
        super(speed, regularPrice, color);
        this.length = length;
    }

    public double getSalePrice() {
        return super.getSalePrice() * (length < 20 ? 0.9 : 0.85);
    }
}
public class Nissan extends Car {
    private int year;
    public int manufacturerDiscount;

    public Nissan(int speed, double regularPrice, String color, int year, int manufacturerDiscount) {
        super(speed, regularPrice, color);
        this.year = year;
        this.manufacturerDiscount = manufacturerDiscount;
    }

    public double getSalePrice() {
        return super.getSalePrice() - manufacturerDiscount;
    }
}
public class MyShop {
    public static void main(String[] args) {
        Toyota toyota = new Toyota(500, 500, "red", 30);
        Nissan nissanOne = new Nissan(300, 300, "black", 2021, 35);
        Nissan nissanTwo = new Nissan(250, 250, "yellow", 2020, 40);
        Car car = new Car(100, 100, "white");
        System.out.println("toyota "+toyota.getSalePrice());
        System.out.println("nissanOne "+nissanOne.getSalePrice());
        System.out.println("nissanTwo "+nissanTwo.getSalePrice());
        System.out.println("car  "+car.getSalePrice());
    }
}