 | Chapter Objectives
(See related pages)
After you have read and studied this chapter, you should be able to- Write programs that are easily extensible and modifiable by applying polymorphism in program design.
- Define reusable classes based on inheritance and abstract classes and abstract methods.
- Differentiate the abstract classes and Java interface.
- Define methods, using the protected modifier.
- Parse strings, using a StringTokenizer object.
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