Applied

• Given the specifications for an application that uses inheritance, create the required classes.
• Given the specifications for an abstract class or method, write the code for the class and the class that inherits it.
• Given the specifications for a final class, method, or parameter, write the code for the class and the class that inherits it.
• Write the code necessary for a class to override the equals method of the Object class so you can test two objects created from that class for equality based on the data they contain.
• Given the Java code for an application that uses any of the language elements presented in this chapter, explain what each statement in the application does.

Knowledge

• In general, explain how inheritance works.
• Explain what it means for a subclass to extend a superclass.
• Explain how inheritance is used within the Java API classes.
• Explain why methods such as toString and equals are available to all objects and when you might override these methods.
• Describe two ways that you can use inheritance in your applications.
• Describe the accessibility that's provided by the access modifiers you can use for the members of a class.
• Explain what polymorphism is and how it works.
• Describe two ways that you can get information about an object's type.
• Explain when it's necessary to use explicit casting when working with objects created from derived classes.
• Explain how abstract classes and methods work.
• Explain how final classes, methods, and parameters work.