You are probably wearing on your wrist one of the most commontypes of objects—a watch. Discuss how each of the following terms and concepts applies to the notion of a watch: object, attributes, behaviors, class, inheritance (consider, for example, an alarmclock), messages, encapsulation and information hiding.

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().

Matched the term or definition with the correct term: Sub Inherits specific members of another class Child 1. Abstraction 2. Base Parent 3. Derived Super 4. Inheritance A class from which another class inherits specific members 5. Interface Object-oriented principle of a class deriving properties from a previously defined class