Chapter 2, Problem 12R

Draw a class inheritance diagram for the following set of classes:

• Class Goat extends Object and adds an instance variable tail and methods milk() and jump().
• Class Pig extends Object and adds an instance variable nose and methods eat(food) and wallow().
• Class Horse extends Object and adds instance variables height and color, and methods run() and jump().
• Class Racer extends Horse and adds a method race().
• Class Equestrian extends Horse and adds instance variable weight and isTrained, and methods trot() and isTrained().