1. Define a class RegularParkingSpace, which is a subclass of ParkingSpace. Add a constructor which makes a regular parking space with a given space number. Override the abstract method showSpaceType to show this is a Regular Parking Space.

2. Define a class HandicappedParkingSpace, which is a subclass of ParkingSpace. Add a constructor which makes a handicapped parking space with a given space number. Override the abstract method showSpaceType to show this is a Handicapped Parking Space.

3. Define a class ParkingLot. A parking lot generally has a number of parking spaces. (You are asked to use composition)

a). Add a default constructor which initializes a parking lot with 5 parking spaces. The first two spaces numbered 1000 and 1001 are handicapped parking spaces. The left three spaces numbered 1002, 1003 and 1004 are regular parking spaces.

b). Add a method that returns the number of parking spaces in the parking lot.

c). Add getters as needed.

4. Define a driver class TestParking. In its main method, declare and instantiate a parking lot using default constructor. Print the type of every parking space in this parking lot, such as

Parking space 1000: It is a handicapped parking space.

Your code MUST reflect the use of polymorphism.

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ParkingSpace Class

package parking_space;

abstract public class ParkingSpace {

private int spaceNum;

private boolean isEmpty;

public ParkingSpace(int spaceNum)

{

this.spaceNum = spaceNum;

}

public int getSpaceNum() {

return spaceNum;

}

public boolean isEmpty() {

return isEmpty;

}

public void setEmpty(boolean isEmpty) {

this.isEmpty = isEmpty;

}

//It is to show the type of the parking space.

//Subclasses will override it.

abstract public void showSpaceType();

}