Question

Problem Statement

Design a class named Car that has the following fields:

• year: The year field is an integer that holds the car’s year.

• make: the make field is a String that holds the make of the car.

• speed: the speed field is an integer that holds the car’s current speed.

In addition, the class should have the following constructor and other methods:

• Constructor: the constructor should accept the car’s year >model and make as parameters. These values should be assigned to the object’s yearand make fields. The constructor should also assign 0 to the speed field.

• Accessors: design appropriate accessor methods to get the values stored in an object’s year, make, and speed fields.

• accelerate: the accelerate method should add 5 to the speed field each time it is called.

• brake: the brake method should subtract 5 from the speed field each time it is called.

Your solution must include these components:

1. UML Class diagram

2. Flowchart

3. Pseudo-code (Gaddis Pseudo Code)

4. Program Coded (Java Code)

Answer 1

// Screenshot of the code & output

// Code to copy

import java.util.Scanner;

public class Car {
   // instance variables declaration
   private int year;
private String make;
private int speed;
// constructor
public Car(int year, String make) {
this.year= year;
this.make = make;
this.speed=0;
}
   public int getYear() {
       return year;
   }
   public String getMake() {
       return make;
   }
public void setSpeed(int speed) {
   this.speed = speed;
}

   public int getSpeed() {
       return speed;
   }
   // accelerate method
   public void accelerate() {
   speed += 5;
   }
   // brake method
   public void brake () {
   speed-=5;
   }

   public static void main(String[] args) {

   int year=0;
   int speed=0;
   String make=null;   
       Scanner keyboard = new Scanner (System.in);       

System.out.print("What is the year of your car? ");
       year = keyboard.nextInt();
       System.out.print("What is the make of your car? ");
       make = keyboard.next();
       System.out.print("How fast is your car going? ");
       speed = keyboard.nextInt();
       Car car = new Car(year, make);
       car.setSpeed(speed);
       car.accelerate();
       System.out.println("\nYearModel:" + car.getYear() + " Make:" + car.getMake() +
       " Speed:" + car.getSpeed() + " MPH.");
       keyboard.close();
   }

}