Question

Write a java program that creates a class Car. Class Car contains the following private member fields: make, model, year, and miles. The class Car has a constructor that takes as arguments the car make, model, and year. In addition, the constructor sets miles to 100 as default. Class Car has accessors and mutators to get and set the make, model, year and miles on the car. The program should complete the following tasks:

1. Ask the user to enter make, model, and year for a car creating an object.
2. Display back the make, model, year, and default miles for the car using accessor methods.
3. Ask the user to enter the new miles (e.g. 50,000).
4. Display the new miles using accessor method.

Answer 1

import java.util.Scanner;

public class Car {

    private String make, model;
    private int year, miles;

    public Car(String make, String model, int year) {
        this.make = make;
        this.model = model;
        this.year = year;
        this.miles = 100;
    }

    public String getMake() {
        return make;
    }

    public void setMake(String make) {
        this.make = make;
    }

    public String getModel() {
        return model;
    }

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

    public int getYear() {
        return year;
    }

    public void setYear(int year) {
        this.year = year;
    }

    public int getMiles() {
        return miles;
    }

    public void setMiles(int miles) {
        this.miles = miles;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter make: ");
        String make = in.nextLine();
        System.out.print("Enter model: ");
        String model = in.nextLine();
        System.out.print("Enter year: ");
        int year = in.nextInt();

        Car car = new Car(make, model, year);
        System.out.println("Make: " + car.getMake() + ", Model: " + car.getModel() + ", Year: " + car.getYear() + ", Miles: " + car.getMiles());
        System.out.print("Enter new miles(e.g. 50000): ");
        car.setMiles(in.nextInt());
        System.out.println("Make: " + car.getMake() + ", Model: " + car.getModel() + ", Year: " + car.getYear() + ", Miles: " + car.getMiles());
    }
}