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Prototypes and Delegation

  • Peter Wisskirchen
Part of the Symbolic Computation book series (SYMBOLIC)

Abstract

The model for object-oriented programming has so far relied mainly on that supported in Smalltalk-80 classes, methods, instances and (hierarchical) inheritance. Every object is an instance of a class. The class manages methods and variables for its instances. Classes form a hierarchy that determines how methods are inherited. New instances are generated by the message new sent to the class. An instance can be copied; this returns a duplicate belonging to the same class.

Keywords

Computer Graphic Access Method Prototype Model Instance Variable Collection Class 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • Peter Wisskirchen
    • 1
  1. 1.Institute for Applied Information TechnologyNational Research Center for Computer Science (GMD)Sankt Augustin 1Germany

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