Please write it in JAVA and write comments

$1.$ Ship, CruiseShip, and CargoShip Classes$(60$pts$)($ Please use your first and last initials at the end of the program name. For example do ShipSK.java$($Use your initials in place of SK$)$

Design a Ship class that the following members:

$$ A field for the name of the ship $($a string$).$

$$ A field for the year that the ship was built $($a string$).$

$$ A constructor and appropriate accessors and mutators.

$$ A toString method that displays the ship$$s name and the year it was built.

Design a CruiseShip class that extends the Ship class. The CruiseShip class should have

the following members:

$$ A field for the maximum number of passengers $($an int$).$

$$ A constructor and appropriate accessors and mutators.

$$ A toString method that overrides the toString method in the base class. The

CruiseShip class$$s toString method should display only the ship$$s name and the

maximum number of passengers.

Design a CargoShip class that extends the Ship class. The CargoShip class should have the

following members:

$$ A field for the cargo capacity in tonnage $($an int$).$

$$ A constructor and appropriate accessors and mutators.

$$ A toString method that overrides the toString method in the base class. The

CargoShip class$$s toString method should display only the ship$$s name and the ship$$s

cargo capacity.

Demonstrate the classes in a program that has a Ship array. Assign various Ship,

CruiseShip, and CargoShip objects to the array elements. The program should then step

through the array, calling each object$$s toString method.

$2.$ RetailItem Class $$ Handling Exceptions $(40$pts$)$

Refer to the attached pseudocode RetailItem that holds data about an item in a retail store. The class should have the following fields:

$$ Description $$ String object that holds a description of the item $($Example $$ Jacket, Designer Jeans, Shirt...$)$

$$ UnitsOnHand $$ int variable that holds the number of units currently in the inventory.

$$ Price $$ double variable that holds the item$$s retail price

Write a constructor that accepts arguments for each field, appropriate mutator methods that store values in these fields, accessor methods that return the values in these fields. Write an exception class that can be instantiated and thrown when a negative number is given for the price. Write another exception class that can be instantiated and thrown when a negative number is given for the units in hand. Demonstrate the exception class in a program.