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THE Java™ Programming Language, Fourth Edition
book

THE Java™ Programming Language, Fourth Edition

by Ken Arnold, James Gosling, David Holmes
August 2005
Intermediate to advanced content levelIntermediate to advanced
928 pages
20h 39m
English
Addison-Wesley Professional
Content preview from THE Java™ Programming Language, Fourth Edition

Chapter 3. Extending Classes

 

I am, in point of fact, a particularly haughty and exclusive person, of pre-Adamite ancestral descent. You will understand this when I tell you that I can trace my ancestry back to a protoplasmal primordial atomic globule.

 
 --Gilbert and Sullivan, The Mikado

The quick tour (Chapter 1) described briefly how a class can be extended, or subclassed, and how an object of an extended class can be used wherever the original class is required. The term for this capability is polymorphism, meaning that an object of a given class can have multiple forms, either as its own class or as any class it extends. The new class is a subclass or extended class of the class it extends; the class that is extended is its superclass.

The collection ...

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Publisher Resources

ISBN: 0321349806Purchase book