Inheritance

$5.$ Implement the following inheritance hierarchy, including a test class that demonstrates polymorphism. $(28$ Points$)$

a$)$ Class Boat $(7$ points$)$

stores the length of the boat as integer value

the constructor initializes the length of the boat.

It contains a getter and setter method for the length

it contains a move method, that prints "drift" when called

it overrides the toString method to return a dynamic string, e$.$g$.,$ "Boat$($length: $9)"$

b$)$ Class RowBoat $(5$ points$)$

inherits from Boat

prints "drift", when its move method is called

overrides the toString method, that returns the following dynamic string, e$.$g$.,$ "RowBoat$($length: $9)"$

c$)$ Class SailBoat $(6$ points$)$

inherits from Boat

prints "hoist sail', when its move method is called

overrides the toString method, that returns the following dynamic string, e$.$g$.,$ "SailBoat$($length: $9)"$

d$)$ Class TestBoat contains a public static void main$($String$[$ args$)$ method, which implements the following tasks: $(10$ points$)$

declares and initializes a Boat object

declares and initializes a RowBoat object

declares and initializes a SailBoat object

adds all three objects to an ArrayList

iterates through the array list and calls the toString, as well as the move method polymorphically.