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Polymorphism

• Wikipedia:Polymorphism_(computer_science)
  
  
• http://www.codecomments.com/archive324-2005-2-394944.html --Is Overloading polymorphism?
  
  
• general polymorphism
  • parametric
  • inclusion (subtype)
    • overriding

      • Method overriding, in object oriented programming, is a language feature that allows a subclass to provide a specific implementation of a method that is already provided by one of its superclasses. The implementation in the subclass overrides (replaces) the implementation in the superclass.[1]

• ad-hoc polymorphism

  • Common to these two types is the fact that the programmer has to specify exactly what types are to be usable with the polymorphic function.[2]

  • coercion
  • overloading
    • methods with same name but different argument- and/or return-types.

• On Understanding Types, Data Abstraction, and Polymorphism by Luca Cardelli, Peter Wegner