CSC 216 F09/polymorphism: Difference between revisions
No edit summary |
No edit summary |
||
| Line 4: | Line 4: | ||
[http://meta.wikimedia.org/wiki/Help:Wikitext_examples Formatting Help Guide from MetaWiki] | [http://meta.wikimedia.org/wiki/Help:Wikitext_examples Formatting Help Guide from MetaWiki] | ||
== | ==Polymorphism - Changing the Shape of Your Program== | ||
Polymorphism is the ability of a subclass to define new or share functionality with a superclass. A subclass automatically has possession of public and protected variables and methods in its superclass. These inherited variables and methods can be called directly from an object of the subclass without having to change type. It is possible to redefine variables and methods within a subclass. This creates functionality. In such a case, a variable or method with the same name defined in the subclass overrides the functionality with the same name of the superclass. | |||
overload many forms | |||
===The problem=== | ===The problem=== | ||
Revision as of 01:03, 10 November 2009
Jim Creager and Davis Dulin
Formatting Resources
Formatting Help Guide from MetaWiki
Polymorphism - Changing the Shape of Your Program
Polymorphism is the ability of a subclass to define new or share functionality with a superclass. A subclass automatically has possession of public and protected variables and methods in its superclass. These inherited variables and methods can be called directly from an object of the subclass without having to change type. It is possible to redefine variables and methods within a subclass. This creates functionality. In such a case, a variable or method with the same name defined in the subclass overrides the functionality with the same name of the superclass. overload many forms
The problem
Describe what you are attempting to teach students by this exercise.
Participants and props
How many students will participate? What else do you need (e.g., old tennis ball, Powerpoint slides, software).
The script
Describe how to do your exercise.