Instructions: Create an application, called BicyclePolyTest, which will be used to create a base class called Bicycle and two derived classes called MountainBike and RoadBike.

For class Bicycle:

Create a class called Bicycle. This class should contain:

* three protected instance variables:

- cadence: int

- gear: int

- speed: int

* named constructor accepting three parameters, for initializing values for the three instance variables

* method setCadence for setting the instance variable cadence

* method setGear for setting the instance variable gear

* method applyBrake for decrementing the speed by a parameter to the method.

* method speedUp for incrementing the speed by a parameter to the method.

* method printDescription for outputting the values of the three instance variables

For class MountainBike:

Create a class called MountainBike which uses Bicyle as a base class. This class should contain:

* one private instance variable

- suspension: String

* named constructor accepting one parameter, for initializing values of the base class and the local instance variable

* method getSuspension for retrieving the instance variable suspension

* method setSuspension for setting the instance variable suspension

* method printDescription for calling the printDescription() in the base class as well as output information regarding the suspension of the MountainBike instance variable.

For class RoadBike:

Create a class called RoadBike which uses Bicyle as a base class. This class should contain

* one private instance variable

- tireWidth: int

* named constructor accepting one parameter, for initializing values of the base class and the local instance variable

* method getTireWidth for retrieving the instance variable tireWidth

* method setTireWidth for setting the instance variable tireWidth

* method printDescription for calling the printDescription() in the base class as well as output information regarding the suspension of the RoadBike instance variable.

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In your application BicyclePolyTest(), create three instance variables of super class Bicycle; bike1, bike2 and bike3.

bike1 should be instantiated from class Bicycle.

bike2 should be instantiated from MountainBike.

bike3 should be instantiated from RoadBike.

Each object should call their respective printDescription method

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Test Harness

You may use the following test harness to test your implementation.

public class BicycleTest

{

public static void main(String[] args)

{

Bicycle bike1, bike2, bike3, bike4;

bike1 = new Bicycle( 20, 10, 1 );

bike2 = new MountainBike( 20, 10, 5, "Dual" );

bike3 = new RoadBike( 40, 20, 8, 23 );

bike1.printDescription();

bike2.printDescription();

bike3.printDescription();

}

}

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will result in the following output:

Bike is in gear 1 with a cadence of 20 and travelling at a speed of 10.

Bike is in gear 5 with a cadence of 20 and travelling at a speed of 10.

The MountainBike has a Dual suspension

Bike is in gear 8 with a cadence of 40 and travelling at a speed of 20.

The RoadBike has 23 MM tires