Question

Car Class Background: Write a class named Car that will be used to store information and control the acceleration and brake of a car. Functionality: 1. Write a class named "Car” that has the following member variables: • year Model - an int that holds the car's year model • make-A string that holds the make of the car • speed - an int that holds the car's current speed 2. In addition the class should have the following member functions: • Getter function - The function should accept the car's year model and make as arguments. These values should be assigned to the object's year Model and make member variables. It should also assign 0 to the speed member variable. • Accelerate - The accelerate function should add 5 to the speed member variable each time this function is called. • Brake - The brake function should subtract 5 from the speed member variable each time this function is called. 3. Demonstrate the class in a program that creates a Car object and then calls the accelerate function five times. After each call to the accelerate function, get the current speed of the car and display it. 4. Then, call the brake function five times. After each call to the brake function, get the current speed of the car and display it. Requirements: 1. Create and use a class named Car.

Answer 1

Car.java

public class Car {
private int yearModel;
private String make;
private int speed;
  
public Car()
{
this.yearModel = 0;
this.make = "";
this.speed = 0;
}

public Car(int yearModel, String make) {
this.yearModel = yearModel;
this.make = make;
this.speed = 0;
}

public int getYearModel() {
return yearModel;
}

public void setYearModel(int yearModel) {
this.yearModel = yearModel;
}

public String getMake() {
return make;
}

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

public int getSpeed() {
return speed;
}

public void setSpeed(int speed) {
this.speed = speed;
}
  
public void accelerate()
{
setSpeed(getSpeed() + 5);
}
  
public void brake()
{
if(getSpeed() - 5 == 0)
System.out.println("Car has stopped!\n");
else
setSpeed(getSpeed() - 5);
}
}

CarTest.java (Main class)

public class CarTest {
  
public static void main(String[] args)
{
Car car = new Car(2006, "Toyota");
  
System.out.println("Accelerating 5 times..");
for(int i = 0; i < 5; i++)
{
car.accelerate();
System.out.println("Current speed: " + car.getSpeed());
}
  
System.out.println("\nBraking 5 times..");
for(int i = 0; i < 5; i++)
{
car.brake();
System.out.println("Current speed: " + car.getSpeed());
}
}
}

********************************************************* SCREENSHOT *******************************************************

run: Accelerating 5 times.. Current speed: 5 Current speed: 10 Current speed: 15 Current speed: 20 Current speed: 25 Braking 5 times.. Current speed: 20 Current speed: 15 Current speed: 10 Current speed: 5 Car has stopped! Current speed: 5 BUILD SUCCESSFUL (total time: 0 seconds)