In c$++$ Design a Ship class that has the following members:

$$ A member variable for the name of the ship $($a string$)$

$$ A member variable for the year that the ship was built $($a string$)$

$$ A constructor and appropriate accessors and mutators

$$ A virtual print function that displays the ship$$s name and the year it was built.Design a CruiseShip class that is derived from the Ship class. The CruiseShip class

should have the following members:

$$ A member variable for the maximum number of passengers $($an int$)$

$$ A constructor and appropriate accessors and mutators

$$ A print function that overrides the print function in the base class. The CruiseShip

class$$s print function should display only the ship$$s name and the maximum number

of passengers.

Design a CargoShip class that is derived from the Ship class. The CargoShip class

should have the following members:

$$ A member variable for the cargo capacity in tonnage $($an int$)$

$$ A constructor and appropriate accessors and mutators

$$ A print function that overrides the print function in the base class. The CargoShip

class$$s print function should display only the ship$$s name and the ship$$s cargo capacityDemonstrate the classes in a program that has an array of Ship pointers. The array ele

ments should be initialized with the addresses of dynamically allocated Ship, CruiseShip,

and CargoShip objects. $($See Program $15-14,$ lines $17$ through $22,$ for an example of how

to do this.$)$ The program should then step through the array, calling each object$$s print

function.