Practice with writing a program that contains three classes: Ship CruiseShip CargoShip Classes Design a Ship class with 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 that accepts two arguments for the two fields, and appropriate accessors and mutators A toString method that returns a string with 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 that accepts three arguments for the three fields and appropriate accessors and mutators A toString method that overrides the toString method in the base class. The CruiseShip class’s toString method should return a string with 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 that accepts three arguments for the three fields and appropriate accessors and mutators A toString method that overrides the toString method in the base class. The CargoShip class’s toString method should return a string with only the ship’s name and the ship’s cargo capacity.

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

Practice with writing a program that contains three classes:

Ship

CruiseShip

CargoShip Classes

Design a Ship class with 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 that accepts two arguments for the two fields, and appropriate accessors and mutators
A toString method that returns a string with 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 that accepts three arguments for the three fields and appropriate accessors and mutators
A toString method that overrides the toString method in the base class. The CruiseShip class’s toString method should return a string with 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 that accepts three arguments for the three fields and appropriate accessors and mutators
A toString method that overrides the toString method in the base class. The CargoShip class’s toString method should return a string with only the ship’s name and the ship’s cargo capacity.

Demonstrate all the above classes in a test program that creates related objects and prints their details (by implicitly/explicitly invoking the related toString methods).

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