Computer Science 1026A/B Chapter Notes - Chapter 10: Init, Instance Variable, Dont

• School: Western University
• Department: Computer Science
• Course: Computer Science 1026A/B
• Professor: Professor Ola

Document Summary

Computer science fundamentals i lecture notes - cs1026. Lecture 10 subclass inherits data & behaviour from a superclass. Object-oriented design uses inheritance as a relationship between a more general class (super class) and a more specialized class (subclass) substitution principle: you can always use a subclass object when a superclass object is expected. Group classes into inheritance hierarchy to share common code among the classes. When using a superclass: from file import classname. Don"t have subclasses if they are too similar all 3 cars get to point b from point a the same way. Single class vs inheritance single class for variation in values inheritance for variation in behaviour. When are classes beneficial? if they have behaviour if they have attributes. The cosmic superclass: object every class declared automatically extends the class object. Defines general methods such as __repr_: returns string representation for each object, can override in subclasses for use in debugging.