Chapter 7: More on Objects and Exceptions

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Chapter 7 More on Objects and Exceptions

OBJECTIVES

To explain the need for abstract class and abstract methods
To define abstract class, abstract methods and non abstract methods
To implement an abstract class Flower
To explain interfaces and its method definitions
To explain the difference between interfaces and abstract classes
To create Wearable and Flyable interfaces
To explain enum and its applications
To create packages and subpackages for class taxonomy
To add classes to packages
To import packages containing classes and interfaces
To explain how packages help to avoid name collision
To illustrate protected data members with package
To define compile time errors and runtime exceptions
To explain Java built-in exception class hierarchy ...

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