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  3. average height method should return average height requirements one class...

Question: average height method should return average height requirements one class...

Question details

Average height method should return average height.

Requirements

  1. One class, one file. Don't create multiple classes in the same .java file
  2. Don't use static variables and methods
  3. Encapsulation: make sure you protect your class variables and provide access to them through get and set methods
  4. All the classes are required to have a constructor that receives all the attributes as parameters and update the attributes accordingly
  5. All the classes are required to have an "empty" constructor that receives no parameters but updates all the attributes as needed
  6. Follow Horstmann's Java Language Coding GuidelinesLinks to an external site.
  7. Organized in packages (MVC - Model - View Controller)

Contents

Person app * String name . Height height Creates a Model object Height int weight . String hometown String highSchool int feet int inches Model . String toString( ) String toString() e Creates three FootbaliPlayer objects . Creates an OffensiveLine object using the three FootbalIPlayer objects . Displays OffensiveLine informatiorn * Displays OffensiveLine average weight extends FootballPlayer . int number . String position OffensiveLine FootballPlayer center FootbaliPlayer offensiveGuard . FootballPlayer offensiveTackle . String toString() . String toString() . int averageHeight()

  • Create a Netbeans project (or keep developing from your previous lab) with
      • App.java
    • Model
      • Model.java
      • FootballPlayer.java
      • Height.java
      • Person.java
      • OffensiveLine.java

Functionality

  • The application App creates a Model object
  • The Model class
    • creates 3 FootballPlayer objects
    • creates an OffensiveLine object using the 3 FootballPlayer objects
    • displays information about the OffensiveLine object and its 3 players
      • it is a requirement that this should be done using the toString( ) method in OffensiveLine, which will use toString( ) in FootballPlayer
    • displays the average height of the OffensiveLine
      • this will be done using the averageHeight in the OffensiveLine

The classes

  • App
    • it has the main method which is the method that Java looks for and runs to start any application
    • it creates an object (an instance) of the Model class
  • Model
    • this is the class where all the action is going to happen
    • it creates three football players
    • it creates an OffensiveLine object using the three players
    • displays information about the OffensiveLine
      • this has to be done using the OffensiveLine object
      • this is really information about its 3 players
      • the format is free as long as it contains all the information about each of the 3 players
    • displays the average height of the OffensiveLine
      • this has to be done using the OffensiveLine object
      • this has to call the averageHeight method in OffensiveLine
  • Person
    • has the following attributes
      • String name;
      • Height height;
      • int weight;
      • String hometown;
      • String highSchool;
    • and a method
      • String toString( )
      • toString( ) overrides the superclass Object toString( ) method
      • toString( ) returns information about this class attributes as a String
    • encapsulation
      • if you want other classes in the same package yo have access to the attributes, you need to make them protected instead of private.
      • see more here.
  • FootballPlayer
    • has the following attributes
      • int number;
      • String position;
    • and a method
      • String toString( )
      • toString( ) overrides the superclass Object toString( ) method
      • toString( ) returns information about this class attributes as a String
  • Height
    • it is a class (or type) which is used in Person defining the type of the attribute height
    • it has two attributes
      • int feet;
      • int inches
    • and a method
      • String toString( )
      • toString( ) overrides the superclass Object toString( ) method
      • toString( ) returns information about this class attributes as a String
      • it returns a formatted string with feet and inches
        • for instance: 5'2"
  • OffensiveLine
    • has the following attributes
      • FootballPlayer center;
      • FootballPlayer offensiveGuard;
      • FootballPlayer offensiveTackle;
      • They might also be stored in an ArrayList
    • and two methods
      • String toString( )
        • toString( ) overrides the superclass Object toString( ) method
        • toString( ) returns information about the 3 players attributes as a String
      • int averageHeight()
        • calculates and returns the average weigh of the OffensiveLine.
        • it is calculated based on the height of each of its players
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