make a program that does the following:

 

1) give an example of an abstract class named SpaceShip. It will include:

- a data member named numEngines of type int

- a data member named name of type String

- an abstract method:

void ShowSpeed ();

 

2) give an example of a class named ScoutShip that extends SpaceShip. It will include:

- no-arg constructor that sets numEngines=1

- a constructor that takes numEngines as an argument

- both constructors should set the name of the ship to "Scout"

- a ShowSpeed() method that prints a line of output with the name of the ship and the speed it can fly. For each engine the ship can fly 2 warp factor (example: a ship with 4 engines can fly at speed 8 warp factor).

 

3) give an example of a class named ExplorerShip that extends SpaceShip. It will include:

- no-arg constructor that sets numEngines=2

- a constructor that takes numEngines as an argument

- both constructors should set the name of the ship to "Explorer"

- a ShowSpeed() method that prints a line of output with the name of the ship and the speed it can fly. For each engine the ship can fly 2 warp factor (example: a ship with 4 engines can fly at speed 8 warp factor).

 

4) give an example of a TestShip.java file with a main() method. The main method should:

- create an instance of the Scout ship class with 1 engine (use the default constructor).

- create an instance of the Explorer ship class with 3 engines.

- call the ShowSpeed() method on both objects. Your output should look something like:

 

Scout ship can fly at speed 2 warp factor

Explorer ship can fly at speed 6 warp factor

 

5) Draw the UML diagram for all 3 classes.