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

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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JAVA-ok so i have all of the following classes created, but for some reason they won't all run together in one program. practicing for my final !!  have tried for hours 

 

Practice by making 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 

 

Practice by making 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. 

 

Practice creating 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. 

 

Practice 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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Hi, 

 

so how would you compile multiple classes within a program as seen in the example provide (java) talking bout from the command prompt, ty

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