Question

java

Write a class named Car that has the following fields:

• yearModel: The yearModel field is an int that holds the car's year model.

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

• speed: The speed field is an int that holds the car's current speed.

In addition, the class should have the following methods:

• Constructor: The constructor should accept the car's year model and make as arguments.

These values should be assigned to the object's yearModel and make fields. The

constructor should also assign 0 to the speed field.

• Accessor: The appropriate accessor methods should be implemented to access the values

stored in the object's yearModel, make, and speed fields.

• accelerate: The accelerate method should add 5 to the speed field when it is called.

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

Demonstrate the class in a program that contains a Car object, and then calls the

accelerate method five times. After each call to the accelerate method, get the current

speed of the car and print it on a separate line. Then, call the brake method five times,

each time printing the current speed of the car on a separate line.

Sample run:

5↵

10↵

15↵

20↵

25↵

20↵

15↵

10↵

5↵

0↵

Answer 1

public class Car {
  
private int yearModel;
private String make;
private int speed;

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

public int getYearModel() {
return yearModel;
}

public String getMake() {
return make;
}

public int getSpeed() {
return speed;
}
  
public void accelerate(){
speed=speed+5;
}
  
public void brake(){
  
if(speed>=5){
speed=speed-5;
}else{
speed=0;
}
}

  
  
}

TestProgram:

public class Abc74 {
public static void main(String[] args){
Car c=new Car(2017, "Nissan");
for(int i=0;i<5;i++){
c.accelerate();
System.out.println(c.getSpeed());
}
for(int i=0;i<5;i++){
c.brake();
System.out.println(c.getSpeed());
}
}
  
  
}

OUTPUT: