public class Bicycle {
    // the Bicycle class has three fields

    public int cadence;

    public int gear;

    public int speed;

    // the Bicycle class has one constructor

    public Bicycle(int startCadence, int startSpeed, int startGear) {

        gear = startGear;

        cadence = startCadence;

        speed = startSpeed;

    }



    // the Bicycle class has four methods

    public void setCadence(int newValue) {

        cadence = newValue;

    }

    public void setGear(int newValue) {

        gear = newValue;

    }

    public void applyBrake(int decrement) {

        speed -= decrement;

    }

    public void speedUp(int increment) {

        speed += increment;

    }



    public void printDescription(){

        System.out.println("\nBike is " + "in gear " + this.gear

                + " with a cadence of " + this.cadence +

                " and travelling at a speed of " + this.speed + ". ");

    }

}








public class MountainBike extends Bicycle {

    // the MountainBike subclass adds one field


    private String suspension;

    // the MountainBike subclass has one constructor

    public MountainBike(int startCadence,

                        int startSpeed,

                        int startGear,

                        String suspensionType) {

        super(startCadence, startSpeed, startGear);
        this.setSuspension(suspensionType);



    }
    public String getSuspension(){

        return this.suspension;

    }
    public void setSuspension(String suspensionType) {

        this.suspension = suspensionType;

    }


    public void printDescription() {

        super.printDescription();

        System.out.println("The " + "MountainBike has a " +

                getSuspension() + " suspension.");

    }


}









public class RocketBike extends Bicycle {
    public int getFuel;
    public int restOfFuel;
    public int Speed;

    public RocketBike(int newrestOfFuel, int newgetFuel, int newSpeed, int startCadence, int startSpeed, int startGear) {
        super(startCadence, startSpeed, startGear);
        this.setrestOfFuel(newrestOfFuel);

        this.setgetFuel(newgetFuel);

        this.setSpeed(newSpeed);
    }

    public void setgetFuel (int newValue) {

        getFuel = newValue;
    }
    public void setrestOfFuel (int newValue) {
        restOfFuel = newValue;

    }
    private void setSpeed(int newSpeed) {
        this.speed = newSpeed;
    }

    private int getSpeed(){

        while (speed < 60);

        return this.speed;

    }
    public int getFuelQuantity(){
        return this.restOfFuel;
    }


    public void setFuelQuantity(int newFuelQuantity) {
        this.restOfFuel = newFuelQuantity;
    }



    public int getRefuel(){
        return this.getFuel;
    }

    public void setRefuel(int newRefuel) {
        this.getFuel = newRefuel;
    }


    public String setCadence() {
        return "Setting cadence inside RocketBike";

    }



    public void printDescription(){

        super.printDescription();

        System.out.println("The RocketBike " + setCadence() );

        System.out.println("The RocketBike " + "has " + getFuelQuantity() + " litres of fuel.");

        System.out.println("The RocketBike " + "fill up " + getRefuel() + " litres of fuel");

        System.out.println("The RocketBike " + "speed is " + getSpeed() + " km/h. You exceeded the speed!");

    }
}














public class RoadBike extends Bicycle{

    // In millimeters (mm)

    private int tireWidth;

    public RoadBike(int startCadence,

                    int startSpeed,

                    int startGear,

                    int newTireWidth){

        super(startCadence,

                startSpeed,

                startGear);

        this.setTireWidth(newTireWidth);

    }

    public int getTireWidth(){

        return this.tireWidth;

    }

    public void setTireWidth(int newTireWidth){

        this.tireWidth = newTireWidth;

    }

    public void printDescription(){

        super.printDescription();

        System.out.println("The RoadBike" + " has " + getTireWidth() +

                " MM tires.");

    }

}












public class TestBikes {

    public static void main(String[] args){

        Bicycle bike01, bike02, bike03, bike04;



        bike01 = new Bicycle(15, 50, 1);

        bike02 = new MountainBike(20, 45, 2, "One");

        bike03 = new RoadBike(13, 90, 17, 14);

        bike04 = new RocketBike(30, 20, 90, 30, 10, 10);



        bike01.printDescription();

        bike02.printDescription();

        bike03.printDescription();

        bike04.printDescription();



    }