I have my program that does what it needs to but I want it to be able to do one more thing and i can't seem to figure out how. This program ask what make,year,speed of a car, I also have where you can have the car accelerate or brake. The program works if you accelerate or brake once. I want to be able to accelerate or break 5 times then show the speed. Can somebody point me into the right direction? Thanks for the help!

Code:
import java.util.Scanner;
public class Car{
    Scanner kb = new Scanner(System.in);
    private int yearModel;
    private String make;
    private int speed;
    private int acc;
    private int count = 0;
    public Car() {
        this.yearModel = yearModel;
        this.make = make;
        this.speed = speed;
    }

    
    
    public void SetMake(){
    this.make = kb.next();
    }
    public void SetYearModel(){
    this.yearModel = kb.nextInt();
    }
    public void SetSpeed(){
    this.speed = kb.nextInt();
    }
    
    
    
    
    public void Accel() {
       
        this.acc = kb.nextInt();
        while (count <= 5) 
        count++;
        {
             
            if (this.acc == 5) {
                this.speed = speed + 5;

            } else if (this.acc == -5) {
                this.speed = speed - 5;

            } else if (this.acc == 0) {
                this.speed = speed;

            } else {
                System.out.println("Goodbye");
                System.exit(0);
            }
        
          
    }
    }
  
        
    
    
    
    

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

    @Override
    public String toString() {
        return "Car {" + "Year Model: " + yearModel 
                + ", Make: " + make 
                + ", Speed=" + speed + '}';
    }
    
    
    
    
    
    
}

Code:
public class CarDemo {

    
    public static void main(String[] args) {
        
     
        Car car1 = new Car();
        System.out.println("Enter Make:\t");
        car1.SetMake();
        System.out.println("Enter Year:\t");
        car1.SetYearModel();
        System.out.println("Enter Speed:\t");
        car1.SetSpeed();
        System.out.println("Enter 5 to accelerate Vehicle or Enter -5 to brake by 5 mph");
        System.out.println("Enter Acceleration:\t");
        car1.Accel();
        
        
        
        
        
        
        
        
        
        
        
        System.out.println(car1);